Compare two PDFs page by page with pixel differences, selectable-text changes, and a JSON report. Use Compare PDF without creating an account. The workbench keeps the source and result together so you can check the output before downloading it.
Compare PDF covers reviewing a revised contract against its source, checking visual changes between document exports, and recording page-level PDF differences in a structured report. Its controls stay on one page, with status and validation messages beside the work area.
Compatible files are processed in your browser and are not sent to a PWRKIT processing server. If the input contains sensitive information, follow your organization’s rules for online utilities.
Before using the result, confirm that a two-PDF comparison input limited to 25 pages per file is complete and that a page-by-page result with difference previews, text changes, and a JSON report matches the destination format. Keep the original until you have checked the output in the application or context where it will be used.
The related pdf tools cover the next common tasks without changing your original input.
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Provide a two-PDF comparison input limited to 25 pages per file. The tool checks the input before processing it.
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Adjust the available compare pdf settings for the result you need.
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Run Compare PDF. If the input is incomplete, the workbench explains what to correct.
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Check a page-by-page result with difference previews, text changes, and a JSON report, then copy or download the result. Your original input stays unchanged.
- reviewing a revised contract against its source
- checking visual changes between document exports
- recording page-level PDF differences in a structured report
Is Compare PDF free to use?
Yes. Compare PDF is available without an account or subscription.
Does Compare PDF upload my input?
Compare PDF processes compatible files in your browser. Your source file is not sent to a PWRKIT processing server.
Does Compare PDF change the original?
No. Compare PDF leaves the source untouched. Copy or download the generated result as a separate output.
What should I check after using Compare PDF?
Confirm that a page-by-page result with difference previews, text changes, and a JSON report matches the intended format and context. Keep the original until the result has been verified.
The visual comparison renders both PDFs at the same selected resolution and reports changed pixels, while the text comparison checks normalized selectable lines. A scanned page can show a visual change without a text change, and a font or antialiasing difference can alter pixels without changing the words. Review the previews and exported report together. This tool does not decide whether a revision is correct or legally significant.