The simplest way to edit a PDF on iPad
The built-in Apple Books app and Files app can handle basic PDF edits without downloading anything else. Open your PDF in Files, tap it, then swipe up to see the markup tools at the bottom — you can add text, draw, sign, and highlight directly. For more control, Apple's free Notes app lets you import a PDF and annotate it page by page. If you need to move pages around, delete them, or merge multiple PDFs, you'll need a dedicated app, but for marking up documents you already have, the tools are already on your device.
The trade-off is that built-in tools work best for comments and signatures rather than editing the original text. If someone sent you a form to fill out, or a contract to mark up, these work fine. If you need to change what the document actually says — rewriting paragraphs, moving text blocks, or restructuring — you'll need an app designed for that.
Key Takeaways
- Apple's Files app and Notes app can mark up PDFs with text, highlights, and signatures without installing anything new.
- For editing the actual text inside a PDF, you need an app like Adobe Acrobat, PDFpen, or Notability that can modify the document itself.
- Free options like PDF informed's basic version and GoodNotes work for annotation; paid versions unlock text editing and form filling.
- Scanned PDFs (images of documents) cannot be edited as text — you need OCR software to convert them to searchable, editable documents first.
Marking up PDFs with the tools you already have
If you only need to add notes, highlights, or a signature, use the Files app. Navigate to your PDF, tap it once to open it, then tap the markup button (it looks like a pen tip in a circle). You can highlight text, add a text box, draw freehand, or sign with your finger or Apple Pencil. When you're done, tap Done and the changes save to the file.
Notes app works similarly but gives you more space to work. Create a new note, tap the plus button, select "Scan Documents" or "Add Sketch," then choose "Add File" to import your PDF. You can then annotate each page. The downside is that Notes keeps the PDF separate from your annotations — you're not editing the original file, you're creating a marked-up copy inside Notes.
Both methods work well for forms, contracts, or documents where you're adding information rather than changing what's already there. They're also fast — no waiting for an app to load or learning a new interface.
Apps that let you edit the text inside a PDF
Adobe Acrobat is the standard tool for serious PDF work. The free version lets you view, annotate, and sign PDFs. The paid subscription ($9.99 per month or $99.99 per year) unlocks text editing — you can click into the document and rewrite paragraphs, change fonts, or delete sections. It also handles form filling, OCR for scanned documents, and merging multiple PDFs. If you already pay for Adobe Creative Cloud, Acrobat is included.
PDFpen ($49.99 one-time purchase) is built specifically for iPad and often faster than Acrobat for everyday editing. It edits text, adds images, reorganizes pages, and fills forms. Many people prefer it because it feels more like an iPad app — the interface uses gestures and touch naturally rather than mimicking desktop software.
Notability ($11.99 one-time) is primarily a note-taking app but handles PDFs well. It's excellent if you want to annotate heavily, write notes alongside the document, or use an Apple Pencil. It's less suited to editing the original text but outstanding for marking up and commenting.
GoodNotes 5 ($7.99 one-time) works similarly to Notability — strong for handwriting and annotation, weaker for editing the underlying text. It's cheaper and many people find the interface cleaner.
What to do with scanned documents and images
If someone sent you a photo of a document or a scanned PDF that's really just an image, you can't edit the text directly. The document is a picture, not a document with searchable text. You need OCR (optical character recognition) software to convert the image into editable text first.
Adobe Acrobat's paid version includes OCR — upload the scanned PDF and it converts it to editable text. PDFpen also has OCR built in. Some free options like Google Drive can OCR documents too: upload the file to Google Drive, right-click it, select "Open with" and choose "Google Docs," and it will convert the image to editable text (though the formatting may shift).
Once OCR converts the document, you can edit it like any other PDF. The quality depends on how clear the original scan is — blurry photos or old photocopies may have errors that need manual fixing.
Organizing and combining multiple PDFs
If you need to merge PDFs, rearrange pages, or delete pages, the Files app has basic tools. Open a PDF, tap Edit (top right), then tap the pages you want to select. You can delete them or move them around by dragging. To merge two PDFs, you'll need an app — Files can't combine separate documents.
Adobe Acrobat, PDFpen, and most dedicated PDF apps can merge files. In Acrobat, create a new document, then add pages from other PDFs by tapping the plus button and selecting "Insert from File." PDFpen has a similar workflow. This is useful if you're assembling a packet of documents or combining pages from different sources into one file.
Choosing between free and paid options
Start with what's built in: Files and Notes are free and handle most annotation work. If you find yourself regularly editing text inside PDFs, or filling complex forms, the cost of a paid app usually pays for itself in time saved. Adobe Acrobat's subscription makes sense if you work with PDFs constantly or need advanced features like batch processing. PDFpen or Notability make sense if you prefer a one-time purchase and don't need Adobe's full ecosystem.
For occasional use — marking up a contract once a month, signing a form — the free tools are enough. For daily PDF work, a paid app is worth the investment because you'll spend less time fighting the software and more time on the actual document.
Saving and sharing your edited PDFs
After you edit a PDF, you need to save it somewhere you can find it again. Most apps save changes to the original file automatically, but check the app's settings to be sure. If you want to keep both the original and the edited version, export a copy before making changes — most apps have a "Save As" or "Export" option.
To share an edited PDF, use the Share button in Files or your PDF app. You can email it, send it through Messages, upload it to cloud storage, or save it to another app. If you edited it in Notes, export it as a PDF first — Notes doesn't share PDFs directly, only the note itself.
Frequently Asked Questions
Can I edit a PDF that someone password-protected?
Not without the password. If the PDF is locked for editing, you'll need the owner to remove the password protection first. Some apps claim to remove passwords, but they don't work reliably and may violate copyright. Ask the person who sent it to you for an unlocked version.
What's the difference between annotating and editing?
Annotating means adding notes, highlights, or marks on top of the document without changing the original text. Editing means changing what the document actually says — rewriting paragraphs, deleting sections, or moving text around. Built-in tools annotate; paid apps edit.
Will my edits work if I send the PDF to someone on a computer?
Yes, as long as you save the file as a standard PDF. Edits made in Adobe Acrobat, PDFpen, or other standard apps will show up on any device. Annotations made in Notes or Apple's markup tools will also transfer, though some older PDF readers may not display them perfectly.
Can I use my Apple Pencil to edit text in a PDF?
You can use it to write and draw, but not to edit typed text. Apps like Notability and GoodNotes let you write notes and draw on PDFs with the Pencil. To edit the actual text, you still need to use the keyboard or the app's text-editing tools.
Is there a free app that edits text inside PDFs?
Not reliably on iPad. Free options like PDF informed's basic version and some others can annotate but not edit the underlying text. Google Docs can convert a scanned PDF to editable text for free, but it's not designed for PDFs that already have text. For real text editing, you'll need to pay.