Best Fill PDF Free Apps

250+ iOS apps curated and reviewed

4.5 avg rating
20 free apps
Updated November 2026

pdfFiller is the household name in fill pdf free, but it's far from the only option. We track 250+ alternatives and competitors on iOS β€” many free, many higher-rated than you'd expect.

Compare top Fill PDF Free Apps (November 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1pdfFiller: edit PDF documentspdfFiller: edit PDF documentsFree4.5β˜… (9.3K)NoYesNov 2026
2Form Filler: fill & sign formsForm Filler: fill & sign formsFree4.6β˜… (32K)NoNoNov 2026
3Acrobat Reader: PDF EditorAcrobat Reader: PDF EditorFree4.6β˜… (670K)NoYesNov 2026
4PDF Editor: Fill, Sign & ScanPDF Editor: Fill, Sign & ScanFree4.5β˜… (4)YesNoOct 2026
5FreePDF: PDF Converter & ScanFreePDF: PDF Converter & ScanFree4.8β˜… (55)YesYesNov 2026
6PDF Gear - PDF Editor & ReaderPDF Gear - PDF Editor & ReaderFree4.7β˜… (9.1K)NoNoNov 2026
7DocFill – PDF Editor & MergerDocFill – PDF Editor & MergerFree5.0β˜… (2)NoYesNov 2026
8SparkPDF: Scan, Sign & FillSparkPDF: Scan, Sign & FillFree5.0β˜… (3)YesYesNov 2026

Top Picks for Fill PDF Free

pdfFiller: edit PDF documents#1

pdfFiller: edit PDF documents by airSlate, Inc.

Scan, fill, sign,make pdf docs
Editor's Choice
πŸ’Ό Business
4.5😞(9.3K ratings)
FreeIn-App Purchases
#61in 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

  • πŸ‘ Easy to use
  • πŸš€ Makes virtual work easy
  • πŸ’‘ Great customer service/support
  • πŸ‘ Simple and organized
  • πŸ‘ Helpful for PDF management

Room to Improve

  • πŸ› Buggy and glitchy
  • πŸ’° Expensive subscription
  • πŸ”’ Concerns about privacy and security
  • πŸ€₯ Misleading/deceptive advertising
  • πŸ”’ Difficult to cancel subscription
  • πŸ› Issues with saving/exporting documents
Form Filler: fill & sign forms#2

Form Filler: fill & sign forms by airSlate, Inc.

Create and Edit pdf documents
Strong Contender
πŸ“Š Productivity
4.6😐(32K ratings)
Free
Form Filler: fill & sign forms screenshot 1
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Form Filler: fill & sign forms screenshot 3
Form Filler: fill & sign forms screenshot 4
Form Filler: fill & sign forms screenshot 5

Easily fill and sign PDF documents using a provided link or QR code. This advanced application streamlines the online form-filling process, saving you time and helping you go paperless.

What We Love

  • πŸ‘ User-friendly and easy to use
  • πŸš€ Convenient and time-saving
  • πŸ’‘ Helpful for managing documents
  • πŸš€ Simplifies form filling process

Room to Improve

  • πŸ› Glitchy and buggy performance
  • πŸ‘Ž Poor navigation and UI design
  • πŸ” Difficulty entering information accurately
  • πŸ“± Not optimized for mobile devices
Acrobat Reader: PDF Editor#3

Acrobat Reader: PDF Editor by Adobe Inc.

Documents Converter & Signer
Worth Considering
πŸ’Ό Business
4.6😞(670K ratings)
FreeIn-App Purchases
#2in Business
Acrobat Reader: PDF Editor screenshot 1
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Acrobat Reader: PDF Editor screenshot 6

This app allows you to view, edit, sign, and convert PDF documents. It offers free tools for reading and annotating PDFs, with premium features for advanced editing, creation, and conversion. An AI assistant is also available for summarizing and extracting information from documents.

What We Love

  • πŸš€ Fast and efficient
  • πŸ”’ Secure document storage
  • πŸ‘ Convenient for reading and annotating PDFs
  • πŸ‘ Useful for students and professionals

Room to Improve

  • πŸ› Buggy and unreliable
  • πŸ”’ Overly intrusive login requirements
  • πŸ’° Expensive subscription model
  • πŸ‘Ž Counterintuitive user interface changes
  • πŸ” Poor search and organization features

More Fill PDF Free apps to explore

FAQ about Fill PDF Free

What are the best fill pdf free apps for iPhone?
pdfFiller: edit PDF documents tops our fill pdf free apps ranking as of November 2026, with a 4.5-star average from 9.3K App Store ratings, and it's free to download.
pdfFiller: edit PDF documents has no ads and offers in-app purchases, according to its App Store listing as of November 2026.
We track 250+ fill pdf free apps on the iOS App Store as of November 2026, ranked by rating, recency, and analysis of real user reviews.