Choose two PDFs
Base version
New version
Differences
Tips
- The tool compares text only, so it skips layout and images.
- Use paragraph mode for long blocks of text; line mode for structured lists.
- If a PDF is image-only, run OCR first; this text diff only compares an embedded text layer.
Compare the words, not the layout
Load the older version as PDF A and the newer version as PDF B, then choose line or paragraph mode. The result is an on-screen text diff; it does not rewrite either PDF.
Choose line or paragraph mode
- Line mode: best for lists, clauses, tables of contents, and forms where line breaks matter.
- Paragraph mode: best for policy drafts, letters, and prose where line wrapping may change between versions.
- Trim whitespace: keep it on when spacing changes are not meaningful.
Know the limits before comparing
This tool reads the embedded text layer. It does not compare page layout, images, annotations, signatures, or visual styling. Scanned PDFs need OCR first.
Useful next steps
FAQ
Why does it compare text rather than layout?
The tool extracts the embedded text layer from each PDF and compares lines or paragraphs. It does not compare page geometry, images, signatures, or visual styling.
What if my PDF is a scan or image-only file?
Run OCR first so the PDF has selectable text. Without a text layer, the diff can only report the text that the PDF parser can read.
What is the difference between line and paragraph mode?
Line mode is better for lists, tables of contents, and structured documents. Paragraph mode is better for prose where line breaks may change between versions.
Does it create or download a changed PDF?
No. Compare shows the differences on screen. It keeps both source PDFs unchanged and does not export a revised PDF.
Are my PDF files uploaded?
No. Both PDFs are read and compared in your browser. Files are not uploaded to a server while you use the tool.