How to sign a PDF on iPhone

You don't need an app to sign a PDF on iPhone. Open the signer in Safari, upload the PDF from Files, iCloud or your email, draw your signature with a finger or Apple Pencil, and download the signed copy straight back to your phone.

Sign PDF online → · Free PDF Signer

What you can do

How to sign a PDF on iPhone

  1. In Safari, open the free signer and tap to upload your PDF from Files, iCloud Drive or an email attachment.
  2. Draw your signature with your finger or Apple Pencil, or type it, then place it on the page.
  3. Add the date or any text fields, then tap seal to bind the signature with a tamper-evident hash.
  4. Download the signed PDF back to Files or share it, all on your iPhone.

Ready? Sign PDF online now, free, no signup, and your file is auto-deleted after an hour.

Frequently asked questions

How do I sign a document on my iPhone?

Open the signer in Safari, choose the file from Files, iCloud Drive or an email attachment, draw the signature with a finger or an Apple Pencil, and download the signed copy back to the phone. There is no app to install and no account to make.

Is there a mobile signature app I need first?

No, and that is the point: a mobile signature app is another download, another login and another set of permissions for a job that takes two minutes in the browser you already have open.

Is it free to sign a PDF online?

Yes. You can fill in and sign a PDF for free with no account, you only pay when you download a finished document ($1.50 per document pay-as-you-go, or unlimited on any paid plan). sign a PDF on iPhone works the same way.

Is signing a PDF online secure?

Yes. Files are uploaded over 256-bit TLS, processed in your browser session, and automatically deleted after one hour. Each signature is bound to the document with a SHA-256 tamper-evident seal, so any later edit is detectable.

Are electronic signatures legally binding?

Yes, electronic signatures are legally binding for ordinary business documents in 190+ countries under the US ESIGN Act and UETA, the EU eIDAS Regulation, and equivalent laws worldwide. Courts look for intent, identity and integrity, all of which PDF Verified records.

Do I need to install anything?

No. Everything runs in your browser on desktop or mobile, no app, plugin or download required.

What PDF Verified is, and what it is not

Electronic signature law is settled in broad terms and specific in the details. The ESIGN Act, UETA, eIDAS and their equivalents recognise electronic signatures across more than 190 countries, and what decides a particular case is intent to sign plus evidence connecting the signature to the signer, which is what the audit certificate records. Certain document types carry their own formalities wherever you are: deeds, wills, some property instruments, and anything requiring a witness or a notary. Sign only what you are authorised to sign, since applying another person signature without their authority is forgery whatever tool is used.

PDF Verified is a tool for preparing, signing, stamping and checking documents. It is not a law firm, a compliance service or a forensic examiner, and nothing here is legal, financial or compliance advice. Requirements differ by country, by document type and by the party asking, so check what applies to your document before you rely on it, and take advice where the document matters. You are responsible for the documents you create, sign and send, and for having the authority to do so: signing or stamping in somebody else name, or as an organisation you do not represent, is forgery whatever tool is used. To the extent the law allows, we accept no liability for how a document made with this tool is used or relied on. The full position is in our terms of service.

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