SmartPrinter

PDF Editor: edit, sign and convert PDFs on your phone

Updated

PDF Editor puts a complete PDF toolkit on your phone. Sign contracts, fill in forms, scan paper documents with text recognition, convert files to and from Word or Excel, and merge, split or compress PDFs. It runs on iPhone, iPad (iOS 15 or later) and Android.

Rated 4.7 out of 5 from 62 ratings on the App Store (checked November 2026).

Features

Sign and fill in

Draw a signature with a pen, marker, fountain pen or pencil, or use a photo of your handwritten one. Save signatures and initials to a library and fill in PDF form fields.

Scan and OCR

Scan documents with automatic edge detection, with modes for ID cards, passports and books. Text recognition runs on your device, and the scanner also reads QR codes and barcodes.

Edit and annotate

Add text, images, shapes and stamps, highlight or underline text, and leave sticky notes. Create new PDFs or merge several into one.

Convert

Convert PDFs to and from Word, PowerPoint, EPUB, TXT, Excel (as CSV) and common image formats. Some conversions need an internet connection.

PDF tools

Split, compress, password-protect, unlock, watermark, number pages, add headers and footers, and print selected pages.

Organise

Reorder, rotate, duplicate, extract or delete pages, with undo. Keep files in folders with tags and bookmarks, read in night mode, and lock the app with Face ID.

Conversions at a glance

FromToNotes
PDFWord, PowerPoint, TXT, EPUB, JPG, PNGEditable text from text-based PDFs
PDFExcel (CSV)Tables exported as comma-separated values
Word, imagesPDFCombine several files into one PDF
Scanned pagesSearchable textOn-device text recognition (OCR)

How to sign a PDF with PDF Editor

  1. Open the PDF. Open PDF Editor and import the file from your phone, cloud storage or an email, or scan a paper document.
  2. Create your signature. Draw your signature with a pen, marker, fountain pen or pencil, or take a photo of your handwritten signature. Save it to your signature library.
  3. Place it. Tap where the signature should go, then resize and move it into place. Add your initials or the date if needed.
  4. Fill in the rest. Type into any form fields and add text where the document asks for it.
  5. Save and share. Save the signed PDF and share it by email or messaging, print it, or fax it.

Free and Pro

PDF Editor is free to download and open PDFs. The Pro subscription unlocks document signing, the page manager, advanced tools, ID, passport and book scan modes, the QR scanner, online conversions, Face ID lock and saving annotations. Weekly, three-month and yearly plans are available, and the yearly plan comes with a free trial on the App Store. Pro renews automatically; cancel at least 24 hours before the end of the period in your store account settings.

Frequently asked questions

Can I fill in PDF forms on my phone?

Yes. PDF Editor fills in PDF form fields, and you can add text anywhere on pages that have no form fields.

Is an electronic signature legally valid in the UK?

In England and Wales, electronic signatures are generally accepted as legally valid for most contracts, a position confirmed by the Law Commission in 2019. Some documents, such as certain deeds or documents that must be witnessed, have extra rules. If in doubt, ask the person or organisation that needs the signature.

Does text recognition (OCR) send my documents online?

No. According to the app listing, text recognition runs on your device. Some file conversions do need an internet connection.

Can I convert a PDF to Word?

Yes. PDF Editor converts PDFs to Word and back, and also handles PowerPoint, EPUB, TXT, Excel (CSV) and image formats.

Can I password-protect a PDF?

Yes. You can add a password to a PDF, remove one from a PDF you have the password for, and add a watermark.