pdf24 sign PDF iPhone: sign a document with your finger

How do you pdf24 sign PDF iPhone documents step by step?

To sign a PDF on iPhone, open Sign PDF in Safari, tap the button to choose the file in the Files app, draw or type your signature, tap Use this signature, then tap the page where it belongs. Press the sign button and save the -signed.pdf file to Downloads.

1. Open Sign PDF in Safari or Chrome on the iPhone.
2. Tap Choose a file and pick the document from Files, iCloud Drive or Downloads.
3. In the signature box choose Draw, Type or Upload, pick black, blue or red, and tap Use this signature.
4. Tap the spot on the page; drag the signature to move it and pull its corner to resize it.
5. Add the Date or Initials if the form asks, then press the button under the pages and save the file.

pdf24 sign PDF iPhone: drawing with a finger

The Draw tab gives a wide box that follows your finger or an Apple Pencil on iPad. Turn the phone sideways for more room. If the line looks shaky, tap Clear and sign again more slowly; the signature is trimmed to its ink, so the empty space around it does not matter.

pdf24 sign PDF iPhone with a typed name

The Type tab turns your name into a handwriting-style signature in a choice of script fonts, up to 60 characters. It is the quickest option on a small screen and looks the same every time, which helps when you sign several pages of one contract.

pdf24 sign PDF iPhone with a photo of your signature

Sign a white sheet with a dark pen, take a photo, and use the Upload tab with a PNG, JPEG or WebP picture. Leave Remove white background ticked so only the ink lands on the page, not a grey rectangle of paper.

pdf24 sign PDF iPhone: tip for multi-page contracts

After the first signature, the Add signature button reuses it, so you can tap each page that needs it. Use Initials for the bottom of every page; they are placed at about 10 % of the page width, the full signature at 24 %.

What did our pdf24 sign PDF iPhone test measure?

Our sign PDF test placed a typed signature on page 1 of a one-page form. The input was 12 KB, the signed file was 29 KB, saving took 0.2 seconds and the request log showed 0 uploads. We measured in Chrome on Windows; on an iPhone the same page runs the same code.

The file grows by a few kilobytes because the signature is stored as a transparent PNG image on the page. A drawn signature with long strokes can be a little larger than a typed one, but a pdf24 sign PDF iPhone result stays well below the usual email limits.

Is a signature from pdf24 sign PDF iPhone legally valid?

A signature made here is a simple electronic signature: an image of your handwriting placed on the page. Many everyday forms, rental papers and permission slips accept that. Contracts that require a qualified or certificate-based digital signature need a signing service with identity checks, which this tool does not provide.

“An electronic signature, or e-signature, is data that is logically associated with other data”

The tool says so after saving: "this is a visible signature, not a certificate-based digital signature." When in doubt, ask the person who sent the document which kind they need. Our digital signature guide explains the difference.

pdf24 sign PDF iPhone versus printing and scanning

Signing on the phone skips the printer, the pen and the scanner. You get a clean PDF with selectable text, while a printed and scanned copy becomes a picture of paper that is larger and harder to search. Both are visible signatures; neither adds a cryptographic certificate to the file.

For most landlords, schools and HR departments the pdf24 sign PDF iPhone route is enough, because they ask for a signed copy, not a certificate. If a bank or court asks for a qualified signature, the visible image will not replace it, however neat it looks.

pdf24 sign PDF iPhone: where the signed file is saved

Safari saves the signed PDF to the Downloads folder in the Files app, unless you chose another download location in Settings. Open Files, tap Browse, then Downloads. From there you can share the file by Mail or Messages, move it to iCloud Drive or open it in another app.

• Mail: tap Share on the file and choose Mail; the PDF is attached as it is.
• Upload portal: in Safari, the portal's Choose File button opens Files, where the signed copy is in Downloads.
• Too large to send? Run Compress PDF on the signed copy.

If you changed Safari's download location to iCloud Drive, the signed file appears there instead and syncs to your other Apple devices. You can then open the same pdf24 sign PDF iPhone result on a Mac to print it or attach it to an email from the desktop.

Is it safe to pdf24 sign PDF iPhone documents in Safari?

Signing in Safari here is private because the PDF and your signature never leave the phone. The page opens the file with the browser File API and writes the signed copy on the device; our request log showed no POST request. Your signature is not stored after you close the tab.

That matters for leases, medical forms and job contracts. Keep the unsigned original until the other side confirms receipt. For how browsers read local files, see the File API on MDN.

What can you do when pdf24 sign PDF iPhone does not work?

When signing fails on an iPhone, check three things: the PDF is not password-protected, the signature was confirmed with Use this signature, and you tapped the page afterwards. Pressing the sign button with nothing placed shows the message that nothing has been added yet, which is the most common cause.

• Locked file: remove the password with Unlock PDF, then sign the copy.
• Form fields: type answers with Fill out PDF before signing.
• Very large scans: close other tabs so Safari has enough memory to draw the pages.
• Wrong spot: tap the cross on the signature and place it again; nothing is written to the file until you press the sign button.