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Doan PDF Compare

Compare two PDFs page by page — side by side, as an onion-skin overlay, or with changed areas highlighted in red. Both files stay in your browser.

Ez dago fitxategien tamaina mugarikFitxategiak pribatuak diraEz da saioa hasi beharBetiko libre

Original (A)

Jaregin fitxategiak hemen edo egin klik arakatzeko

PDF ez dago fitxategien tamaina mugarik

Arakatu fitxategiak

Changed (B)

Jaregin fitxategiak hemen edo egin klik arakatzeko

PDF ez dago fitxategien tamaina mugarik

Arakatu fitxategiak

Zure fitxategiak ez dira inoiz zure gailutik irteten. Prozesamendu guztia zure arakatzailean gertatzen da lokalean.

Drop two PDFs to compare them page by page — side by side, as an onion-skin overlay, or with changed areas highlighted. Both files stay in your browser.

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Nola Funtzionatzen Du

Tools like Draftable and Adobe charge for good PDF comparison, and PDF24 uploads your files. This compares two PDFs visually in your browser — neither file leaves your device.

1
You drop in two PDFs
An "original" (A) and a "changed" (B). Both are rendered locally with pdf.js.
2
Each page is rendered to an image
The matching page from each document is drawn to a canvas at the same scale, in your browser.
3
You choose how to compare
Side by side, an onion-skin overlay with an opacity slider, or a pixel-difference view that highlights changed areas in red and reports the percentage changed.
4
You page through the documents
Step through every page; pages that exist in only one file are flagged.

Contracts and drafts are sensitive, and most comparison tools upload them. Here everything is rendered and compared on your device — ideal for reviewing revised agreements, statements, and documents privately.