How to sign a PDF on iPhone

Draw and stamp your signature onto PDF documents directly on iOS.

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To sign a PDF on your iPhone, open Doclium in Safari and upload your document. You can draw your signature smoothly on your iPhone screen with your finger or stylus, place it onto the exact signature block, and download or email the completed document immediately.

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How to how to sign a PDF on iPhone

  1. 1Open Safari on your iPhone, go to Doclium, and upload the PDF agreement or form.
  2. 2Tap Sign to open the full-screen touch signature pad.
  3. 3Draw your signature using your finger, adjust line thickness, and tap Apply.
  4. 4Drag the signature into place on the page, resize as needed, and download the signed PDF.

Questions people ask

Can I sign contracts and legal forms on iPhone without a paid app?

Yes. Signing is free to use, with no subscription and no watermark on the result. Storage is capped rather than the feature — see the plans page for the limits.

How do I share the signed PDF straight from my iPhone?

After downloading, tap the iOS Share button to send the signed document via Mail, Messages, or WhatsApp.

Is my signature smooth and natural on the touchscreen?

Yes. The signature canvas utilizes high-frequency touch event capture with curve smoothing.

Can I sign multiple pages within the same document?

Yes. You can place your signature on as many pages as required before downloading.

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