Sign PDF

Add handwritten or text-based electronic signatures to your PDF. Pure client-side processing, files never uploaded.

100% browser-based — no upload

or drag and drop files here

Upload a PDF file to sign

Max 100 MB

How to Use

Steps

  1. 1Upload the PDF file you need to sign
  2. 2Create a signature: draw by hand or type your name and pick a style
  3. 3Click on the PDF preview to place your signature, drag to adjust position
  4. 4Drag the blue dot to resize, the yellow dot to rotate
  5. 5Click download to save the signed PDF

Use Cases

  • Signing electronic contracts and agreements
  • Application forms and enrollment documents requiring personal signatures
  • Approval workflows and document confirmations
  • Digitizing invoices, receipts, and financial records
  • Marking and authenticating personal documents or portfolios

Tips

  • Hand-drawn signatures support mouse and touchscreen; stroke thickness is adjustable
  • Text signatures offer 12 styles: script, cursive, cartoon, and Chinese calligraphy
  • Use left/right arrow keys to quickly navigate pages
  • All processing happens locally in your browser; files are never uploaded
  • Signatures are exported as transparent PNGs that blend naturally with the PDF
Open source on GitHubNo data collectionFiles stay localNo server upload

Advanced option · Sponsored

Legally binding digital signatures

Need certificate-based signatures, audit trails, or team approval workflows? PDFelement has enterprise-level signing tools.

What you should know

Adding an electronic signature to a PDF lets you finalize contracts, application forms, and approval documents without printing or scanning. Browser-based signing keeps the document on your device and produces a flat PDF that is harder to tamper with.

  • Two signature styles — draw with a mouse or stylus, or type your name in one of several professional fonts.
  • Place and resize freely — drag the signature anywhere on the page and adjust the size before downloading.
  • For everyday documents — this tool works well for informal contracts and internal approvals. For legally binding e-signatures, use a certified platform.

Read the full Sign PDF guide →

This batch tool processes multiple PDFs at once, applying the same operation to every file you upload. It runs entirely in your browser — files are never sent to a server — and results are packaged for easy download.

  • Upload multiple files — drag and drop a folder or select individual PDFs to process in one go.
  • Same settings for all files — configure the operation once and it is applied uniformly across the batch.
  • Results packaged for download — processed files are bundled into a ZIP archive for convenience.

Browse all PDF tools →

About Sign PDF

Signing a PDF is often the last step before sending a contract, application, or approval. Printing, signing, and scanning is slow and creates image quality loss. An electronic signature added directly in the browser is faster and produces a cleaner file.

This tool supports two signature styles: draw with a mouse or stylus, or type your name in a professional font. You can drag, resize, and place the signature anywhere on the page. Once downloaded, the signature is flattened into the PDF, making it harder to move or remove.

Because the document never leaves your device, the signature process is private. Nothing is stored on a server. This is useful for contracts, NDAs, and internal approvals that contain sensitive information.

This tool is intended for everyday electronic signatures, not legally certified e-signatures that require identity verification. For certified signing or audit trails, use a dedicated e-signature platform. For multiple documents, try Batch Sign PDF.

We use cookies to keep the site working and, if you accept, measure usage with GA4. See our Privacy Policy for details.