Compare PDF
Compare the text of two PDF files — words that were added show in green, deleted words show in red. Best for checking versions of contracts, invoices and documents.
Honest note: This tool only compares text — differences in images, layout or formatting will not be caught. Scanned PDFs (with no text layer) will give empty text; for those, first use the Image to Text (OCR) tool.
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PDF A — first / old file
Drag & drop, or click to browse
File: No file selected
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PDF B — second / new file
Drag & drop, or click to browse
File: No file selected
Result
0
Words added (new in B)
0
Words removed (gone from A)
0
Words unchanged
Privacy note: Your file never leaves your browser — both files stay on your phone or computer, everything happens there, nothing is uploaded.
How to use
- Select the first (old) PDF in the first box and the second (new) PDF in the other box — drag & drop works too.
- When both files are loaded, press Compare PDFs.
- See the stats above: how many words were added, how many were removed, and how many stayed the same.
- Read the differences in the highlighted text below; the full text of both files is also shown side by side.
Tips
- For clean results, compare PDFs with selectable text — scanned images can only be compared as images.
- Small wording edits are easiest to spot in the added/deleted highlight view.
- Check the stats bar first; it shows at a glance how much changed.
- Files are processed in your browser, so contract drafts stay private.