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Validate PDFs with precision, detect layout and text differences, and generate detailed reports for seamless testing. Elevate your PDF testing with SmartUI's robust features. Try now!

Devansh Bhardwaj
January 13, 2026
Hola Testers!
A while ago, we introduced the SmartUI platform to enhance your visual regression testing experience. We’ve been constantly collecting feedback to improve and expand more on the SmartUI platform. Today, we’re thrilled to announce a long-awaited feature to our visual regression testing cloud, i.e. SmartUI’s PDF Testing!
With this addition, you can elevate your testing capabilities and ensure the quality and accuracy of PDF documents. You can now validate PDF files by detecting text, layout, graphics, or other element differences and generate detailed reports, providing a seamless and effective PDF testing experience.
Now overcome the challenge of distortion of visual representations during the conversion process. With SmartUI’s PDF testing, achieve the desired level of precision and clarity when converting PDF pages into images.

Here’s what more you can do:
Highlight specific regions within PDF pages where mismatches occur of the documents carrying vital information and demanding closer scrutiny.
Delve into these additional functionalities:
mis-matches.mis-matches.ignore or select areas using bounding boxes.Note: Want to know more about PDF Comparison with SmartUI? Check out our detailed support documentation
Now get control over threshold settings while testing your PDF files. Additionally, you can:

Now generate detailed comparison reports encompassing side-by-side comparisons, lists of differences, and visual overlays pinpointing where discrepancies occur.

Uncover these additional features:
PDF pages.color specified in the Project settings for the mis-matches.Note: Try now, + Your first 2000 screenshots/month are on us. Give it a shot.
Overcome the challenge of lack of visibility into the status of comparison results. Now get direct access to the comparison status on the SmartUI dashboard and through API results.

Trim down your overall test execution time by leveraging parallel testing. Parallel testing lets you execute multiple test cases concurrently across various combinations of browsers, operating systems, and devices. Now run multiple files simultaneously and compare them all simultaneously while performing PDF testing.
Here’s what more you can do:
Now track and manage different versions of PDF files with a clear and organized system in place. Here’s what more you can do:
Note: SmartUI will soon support testing other document formats such as Excel, Docs, and more.
SmartUI’s new PDF testing feature is a game-changer for users seeking efficient and accurate PDF testing. With robust capabilities like PDF rendering, image comparison, region of interest settings, and customizable threshold adjustments, SmartUI empowers users to achieve pixel-perfect results and identify even the subtlest differences in their PDF files.
By choosing SmartUI for PDF testing, users can confidently tackle the challenges associated with PDF testing, making it easier to maintain document integrity and meet quality standards.
Note: Try now, + Your first 2000 screenshots/month are on us. Give it a shot.
Happy Testing!
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