How to Edit a PDF on iPhone (2026 Guide)
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Editing a PDF on an iPhone used to mean uploading the file to a website you barely trusted, signing into a Mac, or screenshotting the part you needed and reattaching it as an image. In 2026 none of that is necessary. With the right native app you can edit text, replace images, reorder pages, fill out forms, and sign documents — all on your phone, in under a minute.
This guide walks through the exact taps using the PDF Editor app. The same patterns work on iPad and across most modern PDF editors, so the steps transfer if you eventually switch tools. You'll need iOS 16 or later and the PDF Editor app installed from the App Store.
We'll cover opening a PDF from any source (Files, Mail, iCloud Drive, Google Drive), editing the content, and exporting the result. Each step is what you do, not why — but if a step looks fiddly on the screen, the tips section at the end has the quick fixes.
Step by step
- 1
Install and open PDF Editor
Get it from the App Store, then open the app. No account is required to start editing.
- 2
Bring in the PDF
Tap the + button on the home screen. Pick the source — Files, iCloud Drive, your camera roll, or 'Browse' to find Google Drive / OneDrive folders. You can also open any PDF from Mail or Safari and choose 'Open in PDF Editor' from the share sheet.
- 3
Edit text in place
Tap a paragraph or word. A blue selection appears. Edit directly in the text box that pops up. The app keeps the original font, size, and color so the layout stays intact.
- 4
Replace or add an image
Tap an existing image to replace it from your camera roll. Or tap the image tool and place a new image anywhere on the page. Drag the corners to resize.
- 5
Reorder, delete, or duplicate pages
Tap the pages icon to open the thumbnail grid. Long-press any page to move it. Tap a thumbnail to duplicate or delete.
- 6
Sign the document
Tap the Sign tool, draw your signature (or use a saved one), then place it where it belongs. The signature is a regular PDF object, so you can move or resize it after placing.
- 7
Fill in form fields
If the PDF has form fields, tap each one to fill it. The app auto-detects the field type — text, checkbox, dropdown — and gives you the right keyboard.
- 8
Save and share
Tap Done. Choose 'Save' to overwrite the original or 'Save As' to keep both. The share sheet then lets you send via Mail, Messages, AirDrop, or any installed app.
Tips
- Pinch to zoom in before editing tiny text — it dramatically improves accuracy.
- Double-tap a word to select just that word; triple-tap to select the whole line.
- Use the Apple Pencil on iPad for noticeably smoother signatures than fingertip drawing.
- Toggle the Files integration in iOS Settings → PDF Editor so the app appears in every share sheet.
- Long-press the back arrow on the editing screen to step back through your last few changes if undo isn't enough.
Try it on your phone
iOS Files integration matters: enable it under Settings so PDF Editor shows up in every share sheet across other apps. From there, editing a PDF you receive in Mail or Slack is one tap.
