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Best Autofill PDF Apps

250+ iOS apps curated and reviewed

3.9 avg rating
19 free apps
Updated September 2026

Looking for free autofill pdf apps? 19 of our 250+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.

Compare top Autofill PDF Apps (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1pdfFiller: edit PDF documentspdfFiller: edit PDF documentsFree4.4★ (8.5K)NoYesSep 2026
2Acrobat Reader: PDF EditorAcrobat Reader: PDF EditorFree4.6★ (654K)NoYesSep 2026
3Fill and Sign: PDF form fillerFill and Sign: PDF form fillerFree4.7★ (97)YesYesSep 2026
4PDF ProX: PDF Reader & EditorPDF ProX: PDF Reader & EditorFree—YesYesSep 2026
5NestDocs: PDF Editor&ConverterNestDocs: PDF Editor&ConverterFree1.8★ (4)YesYesSep 2026
6AutoFill PDF & eSignAutoFill PDF & eSignFree—NoYesAug 2026
7FreePDF: PDF Converter & ScanFreePDF: PDF Converter & ScanFree—YesYesSep 2026
8PDFPress: Scanner & PDF EditorPDFPress: Scanner & PDF EditorFree—NoYesJun 2026

Top Picks for Autofill PDF

pdfFiller: edit PDF documents#1

pdfFiller: edit PDF documents by airSlate, Inc.

Scan, fill, sign,make pdf docs
Editor's Choice
💼 Business
4.4😞(8.5K ratings)
FreeIn-App Purchases
#56in Business
pdfFiller: edit PDF documents screenshot 1
pdfFiller: edit PDF documents screenshot 2
pdfFiller: edit PDF documents screenshot 3
pdfFiller: edit PDF documents screenshot 4
pdfFiller: edit PDF documents screenshot 5
pdfFiller: edit PDF documents screenshot 6

This app transforms your device into a mobile office for managing PDF documents. Edit, eSign, and fill out forms, then share or export them. It offers secure storage and access to millions of templates, with offline capabilities.

What We Love

  • 👍 Easy to use
  • 🚀 Makes virtual work easy
  • 💡 Great customer service/support
  • 👍 Simple and organized
  • 👍 Helpful for PDF management

Room to Improve

  • 🐛 Buggy and glitchy
  • 💰 Expensive subscription
  • 🔒 Concerns about privacy and security
  • 🤥 Misleading/deceptive advertising
  • 🔒 Difficult to cancel subscription
  • 🐛 Issues with saving/exporting documents
Acrobat Reader: PDF Editor#2

Acrobat Reader: PDF Editor by Adobe Inc.

Documents Converter & Signer
Strong Contender
💼 Business
4.6😞(654K ratings)
FreeIn-App Purchases
#2in Business
Acrobat Reader: PDF Editor screenshot 1
Acrobat Reader: PDF Editor screenshot 2
Acrobat Reader: PDF Editor screenshot 3
Acrobat Reader: PDF Editor screenshot 4
Acrobat Reader: PDF Editor screenshot 5
Acrobat Reader: PDF Editor screenshot 6

This app is a powerful PDF tool for viewing, editing, annotating, and signing documents. It offers AI-powered features for summarizing and interacting with PDFs, along with robust conversion and security options. Collaborate on files and access your documents from anywhere.

What We Love

  • 🚀 Fast and efficient
  • 🔒 Secure document storage
  • 👍 Convenient for reading and annotating PDFs
  • 👍 Useful for students and professionals

Room to Improve

  • 🐛 Buggy and unreliable
  • 🔒 Overly intrusive login requirements
  • 💰 Expensive subscription model
  • 👎 Counterintuitive user interface changes
  • 🔍 Poor search and organization features

More Autofill PDF apps to explore

FAQ about Autofill PDF

What are the best autofill pdf apps for iPhone?
pdfFiller: edit PDF documents tops our autofill pdf apps ranking as of September 2026, with a 4.4-star average from 8.5K App Store ratings, and it's free to download.
Yes — 19 of the top autofill pdf apps we rank are free to download, including pdfFiller: edit PDF documents and Acrobat Reader: PDF Editor.
pdfFiller: edit PDF documents has no ads and offers in-app purchases, according to its App Store listing as of September 2026.
We track 250+ autofill pdf apps on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.
This app allows you to edit any PDF document, including contracts, invoices, and tax forms. You can also eSign documents, fill out fillable forms, highlight content, erase sensitive information, and add various annotations like text and images.
You can easily share documents with others via email, link, or text message, and set permissions for viewing, editing, or signing. The app also allows you to print, fax, and save documents in Word, Excel, and PowerPoint formats.