How To Compare Two PDFs In Adobe Acrobat Pro

Comparing two PDF documents in Adobe Acrobat Pro becomes straightforward when you know the right techniques, especially with the detailed guidance available at COMPARE.EDU.VN. This guide offers a comprehensive walkthrough on effectively using Adobe Acrobat Pro for PDF comparisons, enhanced by techniques for handling protected documents.

1. Understanding the Need for PDF Comparison

Reviewing and comparing lengthy PDF documents, particularly those filled with legal jargon, can be a time-consuming and challenging task. It requires thorough reading and comprehension, particularly if the document is not in your native language. COMPARE.EDU.VN provides a detailed guide that simplifies this complex task.

Imagine you’ve reviewed a document and proposed several changes. The other party implements these changes, and now you need to verify that everything aligns with your requests. This process often necessitates a side-by-side comparison of the original and revised documents.

2. The Challenge of Protected PDFs

The challenge escalates when dealing with protected PDF documents. Protected PDFs often restrict editing, copying, or even printing, which prevents standard comparison methods. Adobe Acrobat Pro typically requires a password to compare protected documents, creating a significant hurdle if you lack the necessary credentials. COMPARE.EDU.VN offers solutions to overcome these limitations.

3. Real-World Scenario: Protected PDFs and Numerous Changes

Consider a scenario where you need to compare two versions of a protected PDF document, each approximately 100 pages long. You’ve added your changes, but the other party has also made roughly 150 additional changes, such as spelling and grammar corrections. The task is to isolate and verify your specific changes amidst a sea of other modifications. Without a proper method, this can be overwhelmingly tedious. COMPARE.EDU.VN provides strategies for managing such complex comparisons.

4. The Solution: Removing PDF Protection

One effective workaround is to remove the protection from the PDFs, enabling you to use Adobe Acrobat Pro for comparison. Google Chrome’s built-in PDF reader and its print-to-PDF functionality offer a convenient method to achieve this. COMPARE.EDU.VN highlights the ease and effectiveness of this method.

4.1. Steps to Remove PDF Protection Using Google Chrome

Here’s a step-by-step guide to remove protection from PDFs using Google Chrome:

Open the Protected PDF: Launch Google Chrome and open the protected PDF document.
Open Print Dialog: Press CMD-P on macOS or CTRL-P on Windows to open the browser’s print dialog.
Select “Save as PDF”: In the print dialog, change the target printer to “Save as PDF.” This option might be the default in some cases.
Save the File: Choose a directory and save the file. Google Chrome will create an unprotected version of the PDF with the same content as the original.

Repeat this process for each version of the protected document you need to compare. Now you have unprotected PDF files ready for comparison.

5. Comparing PDFs in Adobe Acrobat Pro

With the PDFs now unprotected, you can easily compare them using Adobe Acrobat Pro. This comparison tool is designed to highlight the differences between two documents, making the review process efficient. COMPARE.EDU.VN emphasizes the intuitive nature of this comparison tool.

5.1. Steps to Compare PDFs Using Adobe Acrobat Pro

Follow these steps to compare the two documents:

Select “TOOLS”: Open Adobe Acrobat Pro and select the “TOOLS” option in the top menu bar.
Choose “Compare Files”: From the TOOLS menu, select the “Compare Files” option. This tool allows you to compare two versions of a PDF document and highlight the differences.

5.2. Using the Comparison Tool

The comparison tool in Adobe Acrobat Pro is user-friendly and provides a clear overview of the differences between the two documents:

Report Page: The tool initially presents a report page summarizing the number and types of differences detected.
Side-by-Side View: As you scroll down, the tool displays the two documents side by side, with changes highlighted. This visual comparison allows you to quickly identify modifications, additions, and deletions.

6. Detailed Guide: How to Compare Two PDFs in Adobe Acrobat Pro

Adobe Acrobat Pro offers a robust “Compare Files” tool that allows you to easily identify differences between two PDF documents. This feature is especially useful when reviewing revisions, tracking changes, or ensuring accuracy across different versions of a document. COMPARE.EDU.VN highlights the efficiency of this comparison tool.

6.1. Opening the “Compare Files” Tool

Launch Adobe Acrobat Pro: Open the Adobe Acrobat Pro application on your computer.
Navigate to the “Tools” Panel: In the main interface, look for the “Tools” option in the top menu bar or the right-hand pane. Click on it to access the tools panel.
Find the “Compare Files” Tool: In the tools panel, either scroll through the list or use the search bar to find the “Compare Files” tool.
Open the Tool: Click on the “Compare Files” tool to open its interface.

6.2. Selecting the Files to Compare

Once the “Compare Files” tool is open, you’ll need to select the two PDF documents you want to compare.

Choose the “Original File”: Click on the “Select File” button next to the “Original File” label. This will open a file explorer window.
Browse and Select the Original PDF: Navigate to the location of the original PDF document on your computer, select it, and click “Open.”
Choose the “Revised File”: Similarly, click on the “Select File” button next to the “Revised File” label.
Browse and Select the Revised PDF: Navigate to the location of the revised PDF document, select it, and click “Open.”

6.3. Customizing the Comparison Settings

Before running the comparison, you can customize the settings to refine the results.

Access Settings: Click on the “Settings” icon (usually a gear or cogwheel) located near the “Compare” button. This will open the comparison settings dialog.
Comparison Type:
- Text Differences: This setting focuses on identifying changes in the text content of the documents. It’s ideal for tracking revisions and ensuring accuracy in written material.
- Image Differences: This setting focuses on identifying changes in the images within the documents. It’s useful for verifying that images have been correctly updated or replaced.
- Formatting Differences: This setting identifies changes in the formatting of the text, such as font styles, sizes, and alignment.
- Annotation Differences: This setting identifies changes in the annotations, such as comments, highlights, and markups.
Detail Level:
- Detailed Analysis: This setting performs a thorough analysis of the documents, identifying even minor differences. It’s suitable for critical documents where accuracy is paramount.
- Superficial Analysis: This setting performs a quick analysis, focusing on major differences. It’s useful for getting a general overview of the changes.
Ignore Options:
- Ignore Headers and Footers: This option excludes headers and footers from the comparison, which can be useful if these elements are frequently updated.
- Ignore Case Changes: This option ignores changes in capitalization, focusing on content rather than style.
- Ignore White Space Changes: This option ignores changes in white space, such as extra spaces or line breaks, focusing on meaningful content changes.
Save Settings: Once you’ve adjusted the settings to your preferences, click “OK” to save them.

6.4. Running the Comparison

With the files selected and the settings configured, you’re ready to run the comparison.

Click “Compare”: Click the “Compare” button to start the comparison process. Adobe Acrobat Pro will analyze the two documents based on your settings.
Wait for the Results: The comparison process may take a few moments, depending on the size and complexity of the documents. A progress bar will indicate the status of the analysis.

6.5. Reviewing the Comparison Results

Once the comparison is complete, Adobe Acrobat Pro will present the results in a clear and interactive format.

Summary Report: The initial view is a summary report that provides an overview of the differences found between the two documents. This report typically includes:
- Total Number of Changes: The total number of differences identified between the original and revised files.
- Types of Changes: A breakdown of the types of changes, such as text insertions, deletions, and modifications.
- Location of Changes: An indication of where the changes are located within the documents.
Side-by-Side View: The primary view for reviewing the changes is a side-by-side display of the original and revised documents.
- Highlighted Differences: Differences are highlighted using color-coding to distinguish between insertions, deletions, and modifications.
- Navigation Pane: A navigation pane on the left side of the screen provides a list of all the changes, allowing you to quickly jump to specific differences.
Filtering and Sorting:
- Filter Changes: You can filter the changes by type, such as text changes, image changes, or formatting changes.
- Sort Changes: You can sort the changes by location, type, or severity.
Commenting and Annotation:
- Add Comments: You can add comments to specific changes to provide feedback or ask questions.
- Use Annotation Tools: You can use the annotation tools to highlight, underline, or strike through text.
Exporting the Results:
- Export Summary Report: You can export the summary report as a PDF or CSV file.
- Export Annotated PDF: You can export the annotated PDF with all the comments and markups.

6.6. Interpreting the Highlighted Differences

Adobe Acrobat Pro uses color-coding to indicate the type of change:

Green: Indicates text that has been added to the revised document.
Red: Indicates text that has been deleted from the original document.
Blue: Indicates text that has been modified in the revised document.

6.7. Additional Tips for Effective Comparison

Zoom In: Use the zoom tool to get a closer look at the changes.
Use the Hand Tool: Use the hand tool to pan around the documents.
Adjust the Highlight Colors: Customize the highlight colors to improve visibility.
Use the Ruler Tool: Use the ruler tool to measure distances and sizes.
Use the Loupe Tool: Use the loupe tool to magnify specific areas of the documents.

7. Alternative Comparison Methods

While Adobe Acrobat Pro is a powerful tool, several alternative methods can be used to compare PDF documents, depending on your specific needs and resources. COMPARE.EDU.VN offers a variety of options to suit different requirements.

7.1. Online PDF Comparison Tools

Several online tools allow you to compare PDF documents without the need for software installation. These tools are often free or offer a trial period.

DiffNow: DiffNow is a web-based tool that allows you to compare two PDF files and highlights the differences. It supports text and image comparisons.
1. Upload Files: Go to the DiffNow website and upload the two PDF files you want to compare.
2. Run Comparison: Click the “Compare” button to start the comparison process.
3. Review Results: The tool will display the two documents side by side, with differences highlighted.
Draftable: Draftable is another online tool that specializes in comparing documents, including PDFs. It offers a clean interface and accurate results.
1. Upload Files: Go to the Draftable website and upload the two PDF files.
2. Run Comparison: Click the “Compare” button.
3. Review Results: The tool will display the documents with tracked changes.
PDF Comparator: PDF Comparator is a simple online tool that focuses on text comparisons.
1. Upload Files: Upload the two PDF files to the PDF Comparator website.
2. Run Comparison: Click the “Compare” button.
3. Review Results: The tool will show the text differences between the two documents.

7.2. Using Microsoft Word

Microsoft Word can be used to compare two PDF documents, especially if you need to work with the content in an editable format.

Convert PDFs to Word Documents: Open Microsoft Word and convert both PDF documents into Word documents.
Use the “Compare” Feature: Go to the “Review” tab and click on the “Compare” button.
Select the Original and Revised Documents: Choose the original and revised Word documents.
Review the Changes: Microsoft Word will display the changes using tracked changes.

7.3. Using Google Docs

Google Docs offers a free and collaborative way to compare PDF documents.

Upload PDFs to Google Drive: Upload both PDF documents to your Google Drive account.
Open with Google Docs: Open the PDF documents with Google Docs. Google Docs will convert the PDFs into editable documents.
Use the “Compare Documents” Feature: Go to “Tools” and select “Compare documents.”
Select the Original and Revised Documents: Choose the original and revised documents.
Review the Changes: Google Docs will display the changes and provide a summary.

7.4. Manual Comparison

In some cases, manual comparison may be necessary, especially when dealing with complex layouts or visual elements.

Print the Documents: Print both PDF documents.
Use a Highlighter: Manually review the documents and use a highlighter to mark the differences.
Create a Summary: Create a summary of the changes and share it with the relevant parties.

8. Advanced Techniques for PDF Comparison

For more advanced users, several techniques can enhance the PDF comparison process. COMPARE.EDU.VN provides tips for optimizing your comparisons.

8.1. Optical Character Recognition (OCR)

If the PDF documents are scanned images, Optical Character Recognition (OCR) can be used to convert the images into editable text.

Use OCR Software: Use OCR software such as Adobe Acrobat Pro or online OCR tools to convert the PDF documents into editable text.
Compare the Text: Compare the extracted text using the methods described above.

8.2. Command-Line Tools

Command-line tools such as pdftotext and diff can be used for advanced PDF comparisons.

Extract Text: Use pdftotext to extract text from the PDF documents.
Compare Text: Use the diff command to compare the extracted text.

8.3. Programming Languages

Programming languages such as Python can be used to automate the PDF comparison process.

Use PDF Libraries: Use PDF libraries such as PyPDF2 to extract text from the PDF documents.
Implement Comparison Logic: Implement comparison logic to identify the differences between the extracted text.

9. Troubleshooting Common Issues

While comparing PDFs, you may encounter some common issues. Here are some troubleshooting tips. COMPARE.EDU.VN offers solutions to common comparison problems.

9.1. Inconsistent Formatting

Inconsistent formatting can make it difficult to compare PDF documents. Use the “Ignore White Space Changes” and “Ignore Case Changes” options to address this issue.

9.2. Complex Layouts

Complex layouts can make it difficult to identify the differences between PDF documents. Use the zoom tool and the hand tool to navigate the documents.

9.3. Large Files

Large files can take a long time to compare. Use the “Superficial Analysis” option to speed up the comparison process.

9.4. Scanned Documents

Scanned documents may require OCR to extract the text. Use OCR software to convert the images into editable text.

10. Best Practices for PDF Comparison

To ensure accurate and efficient PDF comparisons, follow these best practices. COMPARE.EDU.VN recommends these practices for optimal results.

10.1. Use the Right Tools

Choose the right tools based on your specific needs and resources. Adobe Acrobat Pro is a powerful tool, but alternative methods may be suitable in some cases.

10.2. Customize the Settings

Customize the comparison settings to refine the results. Use the “Text Differences,” “Image Differences,” and “Formatting Differences” options to focus on specific changes.

10.3. Review the Results Carefully

Review the comparison results carefully to ensure that you identify all the differences between the PDF documents. Use the zoom tool and the hand tool to navigate the documents.

10.4. Collaborate with Others

Collaborate with others to review the comparison results. Use the commenting and annotation tools to provide feedback and ask questions.

11. The Benefits of Using Adobe Acrobat Pro for PDF Comparison

Adobe Acrobat Pro provides numerous advantages for comparing PDF documents, making it a preferred choice for professionals and organizations. COMPARE.EDU.VN highlights the key benefits of using Adobe Acrobat Pro.

11.1. Accurate and Reliable Results

Adobe Acrobat Pro uses advanced algorithms to accurately identify the differences between PDF documents. This ensures that you can rely on the results.

11.2. Comprehensive Feature Set

Adobe Acrobat Pro offers a comprehensive set of features for customizing the comparison process. You can choose the types of changes to focus on and adjust the level of detail.

11.3. User-Friendly Interface

Adobe Acrobat Pro has a user-friendly interface that makes it easy to compare PDF documents. The side-by-side view and highlighted differences make it easy to identify changes.

11.4. Collaboration Tools

Adobe Acrobat Pro provides collaboration tools that allow you to share the comparison results with others. You can add comments and annotations to provide feedback and ask questions.

11.5. Integration with Other Adobe Products

Adobe Acrobat Pro integrates seamlessly with other Adobe products such as Photoshop and Illustrator. This allows you to work with PDF documents in a variety of contexts.

12. Real-World Applications of PDF Comparison

PDF comparison is used in a variety of industries and contexts. Here are some real-world applications. COMPARE.EDU.VN showcases the diverse applications of PDF comparison.

12.1. Legal Industry

In the legal industry, PDF comparison is used to track changes to contracts, court documents, and other legal documents. This ensures that all parties are aware of the changes and that the documents are accurate.

12.2. Financial Industry

In the financial industry, PDF comparison is used to track changes to financial statements, reports, and other financial documents. This ensures that the documents are accurate and that all parties are aware of the changes.

12.3. Publishing Industry

In the publishing industry, PDF comparison is used to track changes to manuscripts, proofs, and other publishing documents. This ensures that the documents are accurate and that all parties are aware of the changes.

12.4. Engineering Industry

In the engineering industry, PDF comparison is used to track changes to technical drawings, specifications, and other engineering documents. This ensures that the documents are accurate and that all parties are aware of the changes.

12.5. Academic Research

In academic research, PDF comparison is used to track changes to research papers, articles, and other academic documents. This ensures that the documents are accurate and that all parties are aware of the changes.

13. The Future of PDF Comparison Technology

The field of PDF comparison technology is constantly evolving. Here are some trends to watch for. COMPARE.EDU.VN keeps you updated on the latest advancements.

13.1. Artificial Intelligence (AI)

AI is being used to improve the accuracy and efficiency of PDF comparison. AI algorithms can automatically identify the differences between PDF documents and provide insights into the changes.

13.2. Cloud-Based Comparison

Cloud-based PDF comparison tools are becoming increasingly popular. These tools allow you to compare PDF documents from anywhere in the world and collaborate with others in real time.

13.3. Mobile Comparison

Mobile PDF comparison tools are becoming increasingly available. These tools allow you to compare PDF documents on your smartphone or tablet.

13.4. Integration with Other Tools

PDF comparison tools are being integrated with other tools such as document management systems and collaboration platforms. This makes it easier to compare PDF documents in a variety of contexts.

14. Enhancing Document Review Efficiency

Efficient document review is crucial for professionals dealing with large volumes of PDFs. Optimizing the PDF comparison process can save time and reduce errors. COMPARE.EDU.VN offers practical advice for improving document review workflows.

14.1. Setting Clear Objectives

Before starting the comparison, define clear objectives. What specific changes are you looking for? What aspects of the documents are most important? Having a clear focus can streamline the review process.

14.2. Prioritizing Critical Sections

In lengthy documents, prioritize the most critical sections for comparison. Focus on key clauses, data points, or areas where changes are most likely to occur.

14.3. Utilizing Bookmarks and Navigation

Use bookmarks and navigation features to quickly jump to relevant sections of the documents. This can save time and reduce the need to scroll through the entire document.

14.4. Creating Checklists

Create checklists of items to verify during the comparison. This ensures that you don’t miss any important changes and helps maintain consistency in the review process.

14.5. Using Dual Monitors

If possible, use dual monitors to display the original and revised documents side by side. This provides a larger viewing area and makes it easier to compare the documents.

15. Collaborating Effectively on PDF Comparisons

Effective collaboration is essential when multiple people are involved in the PDF comparison process. Using collaboration tools and establishing clear communication protocols can improve accuracy and efficiency. COMPARE.EDU.VN provides strategies for seamless team collaboration.

15.1. Using Shared Document Repositories

Store the PDF documents in a shared document repository such as Google Drive, Dropbox, or SharePoint. This ensures that everyone has access to the latest versions of the documents.

15.2. Using Annotation Tools

Use annotation tools to add comments, highlights, and markups to the PDF documents. This allows you to provide feedback, ask questions, and communicate changes to other reviewers.

15.3. Establishing Communication Protocols

Establish clear communication protocols for sharing feedback and resolving issues. Use email, chat, or video conferencing to communicate with other reviewers.

15.4. Scheduling Regular Meetings

Schedule regular meetings to discuss the progress of the PDF comparison and address any issues that arise. This ensures that everyone is on the same page and that the comparison is completed on time.

15.5. Designating a Lead Reviewer

Designate a lead reviewer to oversee the PDF comparison and ensure that it is completed accurately and efficiently. The lead reviewer can coordinate the efforts of other reviewers and resolve any disputes.

16. Optimizing PDF Documents for Comparison

Optimizing PDF documents for comparison can improve the accuracy and efficiency of the process. Here are some tips for optimizing PDF documents. COMPARE.EDU.VN offers advice on how to prepare your documents for effective comparison.

16.1. Use Standard Fonts

Use standard fonts such as Arial, Times New Roman, or Courier New. This ensures that the text is displayed correctly and that the comparison tool can accurately identify the differences.

16.2. Avoid Complex Layouts

Avoid complex layouts that can make it difficult to identify the differences between PDF documents. Use simple layouts with clear headings and subheadings.

16.3. Use Consistent Formatting

Use consistent formatting throughout the PDF documents. This ensures that the comparison tool can accurately identify the differences.

16.4. Remove Unnecessary Elements

Remove unnecessary elements such as images, logos, and watermarks. This can reduce the size of the PDF documents and speed up the comparison process.

16.5. Compress PDF Documents

Compress PDF documents to reduce their size. This can make it easier to share the documents and speed up the comparison process.

17. Case Studies: Successful PDF Comparisons

Examining real-world case studies can provide valuable insights into how PDF comparison is used in different industries and contexts. Here are some examples of successful PDF comparisons. COMPARE.EDU.VN showcases successful applications of PDF comparison.

17.1. Legal Contract Review

A law firm used Adobe Acrobat Pro to compare two versions of a complex legal contract. The comparison tool identified several key changes that had been made to the contract, including modifications to liability clauses and payment terms. This allowed the law firm to advise its client on the potential implications of the changes and negotiate more favorable terms.

17.2. Financial Statement Audit

An accounting firm used DiffNow to compare two versions of a financial statement. The comparison tool identified several discrepancies between the two versions, including errors in revenue recognition and expense reporting. This allowed the accounting firm to correct the errors and ensure that the financial statement was accurate.

17.3. Engineering Design Review

An engineering firm used Draftable to compare two versions of a technical drawing. The comparison tool identified several changes that had been made to the drawing, including modifications to dimensions, materials, and tolerances. This allowed the engineering firm to ensure that the design was accurate and that it met the required specifications.

17.4. Academic Research Paper Revision

A researcher used Google Docs to compare two versions of a research paper. The comparison tool identified several changes that had been made to the paper, including modifications to the introduction, methods, results, and discussion sections. This allowed the researcher to improve the clarity and accuracy of the paper.

18. Future Trends in Document Management

Document management is constantly evolving, driven by advancements in technology and changing business needs. Staying informed about future trends can help organizations prepare for the future and optimize their document management practices. COMPARE.EDU.VN keeps you updated on the latest trends in document management.

18.1. Increased Automation

Automation is playing an increasingly important role in document management. AI and machine learning are being used to automate tasks such as document classification, data extraction, and workflow routing.

18.2. Cloud-Based Solutions

Cloud-based document management solutions are becoming increasingly popular. These solutions offer a number of advantages, including scalability, flexibility, and cost savings.

18.3. Mobile Access

Mobile access to documents is becoming increasingly important. Organizations need to provide their employees with the ability to access and manage documents from anywhere in the world.

18.4. Enhanced Security

Security is a top priority for document management. Organizations need to protect their documents from unauthorized access and ensure that they comply with data privacy regulations.

18.5. Integration with Other Systems

Integration with other systems is becoming increasingly important. Organizations need to integrate their document management systems with other business applications such as CRM, ERP, and HR.

19. Conclusion: Streamlining PDF Comparisons for Enhanced Productivity

Comparing two PDFs in Adobe Acrobat Pro is a straightforward process when you follow the right steps. By removing protection, utilizing the comparison tool, and understanding the results, you can efficiently review and verify changes in your documents. COMPARE.EDU.VN is dedicated to providing comprehensive guides and resources to simplify complex tasks and enhance your productivity.

Remember, the key to effective PDF comparison lies in preparing your documents, customizing the comparison settings, and collaborating with others to ensure accuracy. Whether you’re in the legal, financial, publishing, or engineering industry, mastering PDF comparison techniques can significantly improve your workflow and reduce errors.

For more detailed guides, tips, and comparisons, visit COMPARE.EDU.VN today and discover how you can make informed decisions with confidence. Our team is dedicated to providing you with the information you need to succeed.

Are you looking for more ways to streamline your document review process and make informed decisions? Visit compare.edu.vn today to explore a wealth of comparison guides and resources designed to help you navigate complex tasks with confidence. Our team is dedicated to providing you with the information you need to succeed. Contact us at 333 Comparison Plaza, Choice City, CA 90210, United States or via Whatsapp at +1 (626) 555-9090.

20. Frequently Asked Questions (FAQ)

Here are some frequently asked questions about comparing PDFs in Adobe Acrobat Pro.

Can I compare password-protected PDFs?

No, you cannot directly compare password-protected PDFs without removing the password protection first. Follow the steps outlined earlier to remove the protection.
What if the documents have different page orientations?

Adobe Acrobat Pro can still compare documents with different page orientations. The comparison tool will adjust the view to accommodate the different orientations.
Can I compare scanned PDF documents?

Yes, but you may need to use Optical Character Recognition (OCR) to convert the scanned images into editable text before comparing them.
What if the documents have different fonts?

Adobe Acrobat Pro can still compare documents with different fonts. The comparison tool will focus on the content rather than the font styles.
Can I compare PDFs in different languages?

Yes, but the accuracy of the comparison may be affected by differences in language structure and character sets.
What if the documents have different layouts?

Adobe Acrobat Pro can still compare documents with different layouts. The comparison tool will focus on the content rather than the layout.
Can I compare PDFs created with different software?

Yes, Adobe Acrobat Pro can compare PDFs created with different software. The comparison tool is designed to handle a variety of PDF formats.
How do I update Adobe Acrobat Pro?

To update Adobe Acrobat Pro, go to “Help” and select “Check for Updates.” Follow the prompts to install any available updates.
What are the system requirements for Adobe Acrobat Pro?

The system requirements for Adobe Acrobat Pro vary depending on the version. Refer to the Adobe website for the latest system requirements.
Is there a free trial of Adobe Acrobat Pro?

Yes, Adobe offers a free trial of Adobe Acrobat Pro. Visit the Adobe website to sign up for the trial.