What is Compare PDF Files?
This PDF comparison tool lets you upload two PDF files, extracts text page by page, and produces a diff report highlighting added and removed content. Input: two PDF files. Output: page-by-page differences with additions and deletions marked. Built for contract version checks, document review, revision confirmation, and version management. All processing happens locally — your PDFs are never uploaded.
▶Use Cases5 scenarios
- ◆Contract version checking
- ◆Document review and revision
- ◆Version diff confirmation
- ◆Tracking multi-round edits
- ◆Compliance checks
▶How to Use5 steps
- 1Open the Compare PDF tool
- 2Select the first PDF file
- 3Select the second PDF file
- 4Click Compare
- 5Review additions and deletions
▶Features8 features
- ✓Completely free
- ✓No signup
- ✓Page-by-page comparison
- ✓Additions highlighted
- ✓Deletions marked
- ✓Runs in your browser
- ✓Files never uploaded
- ✓Responsive design
▶FAQ7 questions
What is Compare PDF Files?
An online PDF comparison tool. Compare two PDF files page by page, highlighting added and removed text.. Everything runs locally in your browser — no uploads.
What is the Compare PDF tool?
A free online tool that extracts text from two PDFs page by page and highlights the additions and deletions between them.
What file size does it support?
Regular-sized PDFs work well; comparison takes seconds to tens of seconds depending on page count.
What content is compared?
The text layer of both PDFs, including body and table text. Image differences are out of scope.
Are my PDFs uploaded?
No. Everything is processed locally in your browser.
How are results shown?
Differences are shown page by page, with additions and deletions marked separately for easy locating.
What is it good for?
Contract version checks, document review, revision confirmation, and change tracking.