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How to edit a PDF on iPhone

iOS has no built-in way to do most PDF editing — the Files app can preview and rename PDFs, and Books can read them, but combining, splitting or editing pages means either paying for an app or handing your document to a website that uploads it. A browser tool avoids both: nothing to install from the App Store, and nothing uploaded off your phone.

Fixing a typo, covering outdated details or adding text to a form is the kind of small edit that always seems to come up when you don't have desktop software available.

Open Edit PDF →

Step by step on iPhone

  1. 1Open the Edit PDF tool and upload your PDF.
  2. 2Pick a tool from the toolbar — Text, Whiteout, Highlight or Image — and click on the page to place it.
  3. 3Drag to position, use the corner handle to resize, and use the side panel to change the font, size or color of text.
  4. 4To replace existing words: cover them with a Whiteout box, then place Text on top.
  5. 5Click “Apply & download” — your edits become a permanent part of the PDF.

When you tap to add a file, iOS opens a picker with Photo Library, Take Photo or Video, and Choose File. Pick Choose File to reach PDFs stored in Files, iCloud Drive, Google Drive or Dropbox if you have those apps installed.

Where the finished file is saved on iPhone

Safari saves downloads to the Downloads folder inside the Files app (On My iPhone → Downloads by default). Tap the download arrow in Safari's address bar to jump straight to the finished file, then use the share sheet to move it to iCloud Drive, Mail or any other app.

What iPhone can’t do on its own

iOS can show you a PDF and let you scribble on it with Markup, but it can't merge two documents, pull out a page range, or edit existing text. Those are exactly the gaps a browser tool fills without an install.

FAQ

Do I need to install an app to do this on iPhone?
No. Everything runs in Safari or Chrome on your phone — there's nothing to download from the App Store, no account, and no subscription.
Where does the finished PDF go on my iPhone?
Into the Files app, under Downloads. Tap the download icon in Safari's address bar to open it immediately, then share it to Mail, Drive or anywhere else from there.
Can I change text that's already in the PDF?
You can cover any existing text with a whiteout box and type new text over it — the classic PDF-editing technique. True in-place text editing of the original characters isn't possible in a flattened PDF, but the whiteout approach produces a clean result that prints perfectly.
Will people see that the PDF was edited?
Your edits are drawn into the PDF's own content, the same way desktop editors do it. Match the font and size to the surrounding text for the most seamless result.
Does editing upload my PDF anywhere?
No — the whole editor runs in your browser. The file, your edits and the final download never leave your device.
Is the PDF editor really free? Any watermark or trial?
Completely free — no watermark on the edited PDF, no trial period, no locked features and no sign-up. Edit as many documents as you like.
Can I edit a PDF without installing any software?
Yes. Everything runs in your web browser on Mac, Windows, Linux, Chromebook or a phone — there's nothing to download or install.
Is pdfcdf free to use?
Yes. Every tool on pdfcdf is completely free, with no account, no watermarks, and no limits on how many files you process.
Are my files safe? Do they get uploaded?
Your files never leave your device. Every tool runs entirely in your browser, so your documents are processed locally and are never uploaded to a server or seen by anyone.
Do I need to create an account or sign up?
No. pdfcdf works instantly with no sign-up, no email, and no software to install — just open the tool and go.
Does it work on mobile phones and tablets?
Yes. pdfcdf runs in any modern browser on phones, tablets, Mac, Windows and Linux — nothing to download.

Ready to edit a PDF on your iPhone?

Open Edit PDF →

Same tool, other devices

Edit a PDF on AndroidEdit a PDF on MacEdit a PDF on WindowsEdit a PDF on ChromebookEdit a PDF on iPad

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