Sign PDF

Draw, type, or upload a signature and place it on one PDF page.

Your PDF and signature stay in your browser. Nothing is uploaded or sent to a server.

This places a visible signature image. It does not create a certificate-backed digital signature, verify identity, or prove that the document has not changed.

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Add Page Numbers

Number all or selected PDF pages with custom format, position, size, and margins.

Compare PDFs

Find page-aligned visual differences with an overlay slider and local report.

Compress PDF

Losslessly optimise fonts, content streams, and duplicate resources with WebAssembly.

Crop PDF

Adjust visible PDF page boundaries locally without rasterising or deleting content.