Sign any PDF — digitally
Add your signature to any PDF for free. Type your name, draw your signature, or upload a signature image. No downloads, no sign-up required.
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Add your signature — legally
PdfDocShift's PDF signing tool lets you add a typed, drawn, or image-based signature directly onto your PDF document. Perfect for contracts, forms, and agreements. Your signature is embedded on the last page using pdf-lib and the signed PDF is ready to download in seconds.
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Sign PDF questions
Everything you need to know about signing PDF files online.
A typed or drawn signature applied via PDF editing is considered an electronic signature. For legally binding contracts, requirements vary by jurisdiction — in many countries e-signatures are legally valid under laws such as eIDAS (EU) and ESIGN Act (US).
Currently the signature is placed on the last page of the document, which is the standard position for most contracts and forms.
Upload any common image format (JPG, PNG) as a base64 data URI. For best results use a PNG with a transparent background so the signature blends naturally with the page.
No watermarks are added by PdfDocShift. Only your chosen signature is added to the PDF — nothing else is modified.