Compare PDF Online
PDF ToolsCompare two PDF files side by side.
Processing and limits
Files are uploaded for this operation. Maximum 25 MB per file. Rendered operations support up to 40 pages; text extraction conversions support up to 60 pages. Review the downloaded result before use.
Successful outputs are marked for deletion after delivery. Interrupted jobs are removed by scheduled cleanup.
This processor is not enabled on this server yet. Processing will return an availability message until setup is complete.
Compares rendered pages at up to 150 DPI and reports which pages changed. This detects visual changes; it is not a semantic or legal review.
Rendering page previews…
Page unavailable in this document.
What is Compare PDF?
Compare rendered PDF pages and report which pages changed visually.
How to use Compare PDF
- 1 Choose the supported source file.
- 2 Select the options shown for Compare PDF.
- 3 Process the document and review the result before saving or sharing.
Supported formats and limits
- PDF input; output as described above
Common uses
- Locate changed report pages
- Check a revised print export
- Identify visual differences between document versions
Things to know
- Rendering comparison is not a legal or semantic review. It does not compare hidden metadata or attachments.
Privacy and file handling
Files are uploaded to the server only to perform the task and are deleted as soon as the download is delivered.
Frequently asked questions
What does Compare PDF do?
Compare rendered PDF pages and report which pages changed visually.
What are the important limitations?
Rendering comparison is not a legal or semantic review. It does not compare hidden metadata or attachments.
Where is my document processed?
On the server for this operation. Successful downloads are marked for deletion; abandoned jobs expire through scheduled cleanup. AI actions send extracted text to the configured provider only with consent.
Should I review the result?
Yes. Check the output before sharing, printing or relying on it. Keep a copy of the original.