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Gratis 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.

Sin límite de tamaño de archivoLos archivos permanecen privadosSin necesidad de registroGratis para siempre

Original (A)

Arrastra archivos aquí o haz clic para explorar

PDF sin límite de tamaño de archivo

Explorar archivos

Changed (B)

Arrastra archivos aquí o haz clic para explorar

PDF sin límite de tamaño de archivo

Explorar archivos

Tus archivos nunca salen de tu dispositivo. Todo el procesamiento se realiza localmente en tu 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

Cómo 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 qué usar el nuestro?

✓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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Comprime archivos PDF para reducir su tamaño. Elija un nivel de calidad: una compresión más alta significa archivos más pequeños pero una fidelidad de imagen más baja.

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