Comparison of different software for comparing PDF files

In the digital age, where text files are the primary method of communication, comparing them to detect differences can often be useful, but tricky. Especially for people working with PDF files designed to maintain consistency across different platforms. Accurately identifying changes becomes even more complex. Hence the importance of a PDF comparator. This guide takes you through some of the main PDF comparison software, focusing on their features, ease of use and accuracy of results.

Feature comparison

PDF comparison software is usually known for its ability to compare textual content. But they can also be used to COMPARE PDF FILES WITH DRAWINGS. To compare the functionalities of PDF file comparison software, it is important to take certain parameters into account. These include difference detection, support for different file types and processing speed.

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Difference detection

One of the most important parameters of PDF comparison software is its ability to accurately detect differences between two files. Some programs use powerful algorithms to identify changes such as text modifications, image additions or deletions and formatting variations.

Among the most powerful software in this area are often those that offer granular comparison options. This allows the user to specify which types of changes should be taken into account.

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Support for different file types

Another essential aspect to consider is the software's ability to support different types of PDF files. Some programs are designed to work only with standard PDF files. Others have the ability to handle files containing complex elements such as interactive forms, comments and annotations. The ability to compare password-protected PDF files can also be a key criterion for many users.

Processing speed

Processing speed is an important criterion, especially when working with large datasets. Some PDF comparison software is optimised for fast performance. This allows the user to quickly compare multiple files without compromising the accuracy of the results. Other software may be slower, but offer better accuracy in detecting differences.

Comparison of some of the main software

There are a number of PDF comparison programs on the market. These include Adobe Acrobat Pro DC, Foxit PhantomPDF, ComparePDF, etc.

Adobe Acrobat Pro DC

This software uses an advanced algorithm to detect differences between files, including text changes, layout changes and object additions.

Advantages and disadvantages

Acrobat Pro DC supports a wide range of PDF file types, including password-protected files. It offers a user-friendly interface to facilitate the comparison process. It also offers high accuracy in detecting differences. On the other hand, it is expensive and requires a subscription to Adobe Creative Cloud.

Prices and licence conditions

It is available on a monthly or annual subscription basis, with prices varying according to the plan chosen and the user's geographical region. Individual plans typically start at $15 per month for an annual subscription. Users must purchase an Adobe Creative Cloud subscription to access Adobe Acrobat Pro DC.

Foxit PhantomPDF

Foxit PhantomPDF is a popular alternative to Adobe Acrobat. It offers PDF creation, editing and comparison functions.

Advantages and disadvantages

This software offers fast processing speed, high accuracy in detecting differences and an affordable price compared with Adobe Acrobat. However, some advanced features may require upgrading to more expensive versions.

Pricing and licensing terms

It is available as a perpetual licence or an annual subscription. Prices vary according to the version chosen (Standard, Business, etc.) and the licence options (number of users, volume licences, etc.). Individual versions can start from $129 for a perpetual licence or $7 per month for an annual subscription. Volume licences are also available for businesses and organisations with multiple user requirements.


ComparePDF is software that specialises in comparing PDF files. It offers a simple and intuitive solution for detecting differences between two documents.

Advantages and disadvantages

This software is appreciated for its ease of use and accuracy in detecting changes. However, it may lack some of the advanced features found in other software.

Price and licence conditions

It generally offers a perpetual licence at an affordable price. Prices can vary depending on the software version and licensing options, but individual versions can start from as little as $50. Licensing terms are straightforward, with a perpetual licence allowing the user to use the software indefinitely after the initial purchase.

In summary, the choice of PDF comparison software will depend on the specific needs of each user, as well as factors such as budget and personal preference. Whatever software you choose, it's important to consider ease of use, accuracy of results and value for money when making your decision.

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