PDF ComparePDF Tools
Compare Two PDF Documents
Upload original PDF
PDF (.pdf) • up to 25 MB per file • max 1 file
Choose files
Upload revised PDF
PDF (.pdf) • up to 25 MB per file • max 1 file
Choose files
Compare extractable PDF text page by page. See added, removed and changed wording with a clear summary. Processing stays in your browser; this is a text comparison, not a pixel or formatting comparison.
- Added and removed words
- Page-level changes
- Comparison summary
Free, no sign-upProcessed in memory
How it works
- 1
Choose your files
Use the navy upload box to select supported files. File type and size are checked before processing.
- 2
Process locally
Start processing in your browser. Read the tool limitations and any validation messages.
- 3
Review the result
Inspect the decoded content, comparison or generated PDF before using or sharing it.
Frequently asked questions
3Does it compare images or scanned pages?
No. Images, layout, formatting and visual-only changes are not compared. Scanned PDFs need OCR first. Pages without extractable text are flagged rather than declared identical.
How are pages matched?
Pages are paired by page number, not semantic similarity. Inserting a page may cause later pages to be reported as changed. Word-level additions and removals identify changed text within each pair.
What are the limits?
Two unencrypted PDFs, each up to 25 MB, 200 pages and 500,000 extracted characters. Highly complex text differences may hit a comparison timeout. Files never leave your browser.