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Gratuito 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.

Sem limite de tamanho de arquivoArquivos permanecem privadosSem login necessárioGratuito para sempre

Original (A)

Arraste arquivos aqui ou clique para procurar

PDF sem limite de tamanho de arquivo

Procurar arquivos

Changed (B)

Arraste arquivos aqui ou clique para procurar

PDF sem limite de tamanho de arquivo

Procurar arquivos

Seus arquivos nunca saem do seu dispositivo. Todo o processamento acontece localmente no seu navegador.

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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Compare Two Contract Versions Review Document Revisions Compare Invoices or Statements Compare Design Proofs Compare Paper or Thesis Drafts

Como funciona

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.

Por que usar o nosso?

✓Completely free — no hidden costs, ever

✓No account, email, or login required

✓Files stay on your device — processing happens in your browser

✓Works on any device — phone, tablet, desktop

✓No watermarks on any output

✓Browser memory limits may apply for very large files

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