Best Digital Sign PDF Apps

248+ iOS apps curated and reviewed

4.0 avg rating
20 free apps
Updated August 2026

With an average user rating of 4.0★, the digital sign pdf category is one of the App Store's strongest. Browse all 248+ apps we track, sorted so the most loved ones surface first.

Compare top Digital Sign PDF Apps (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1e Signature Scanner, Sign PDFe Signature Scanner, Sign PDFFree4.6★ (2K)NoYesSep 2026
2Acrobat Reader: PDF EditorAcrobat Reader: PDF EditorFree4.6★ (651K)NoYesSep 2026
3Signeasy: Sign PDF DocumentsSigneasy: Sign PDF DocumentsFree4.9★ (34K)NoYesSep 2026
4eSign – PDF Documents FillereSign – PDF Documents FillerFree4.4★ (36)NoYesSep 2026
5Sign - Upload & Sign DocsSign - Upload & Sign DocsFreeNoYesMay 2026
6Scan Fill & Sign PDF DocumentsScan Fill & Sign PDF DocumentsFree1.0★ (1)NoYesSep 2026
7Sign.Plus - Sign PDF DocumentsSign.Plus - Sign PDF DocumentsFree4.8★ (272)NoYesSep 2026
8Sign PDF: Document SignatureSign PDF: Document SignatureFree4.6★ (45)NoYesAug 2026

Top Picks for Digital Sign PDF

e Signature Scanner, Sign PDF#1

e Signature Scanner, Sign PDF by Profuse

Electronic Document Signer App
Editor's Choice
💼 Business
4.6😐(2K ratings)
FreeIn-App Purchases
e Signature Scanner, Sign PDF screenshot 1
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e Signature Scanner, Sign PDF screenshot 4
e Signature Scanner, Sign PDF screenshot 5
e Signature Scanner, Sign PDF screenshot 6

Capture your handwritten signature from paper using your phone's camera. The app automatically cleans and refines it for a professional, transparent digital signature to use on PDFs and other documents. Sign contracts, invoices, and agreements quickly and securely.

What We Love

  • 👍 Easy to use
  • 🚀 Efficient signature creation
  • 💡 Convenient for on-the-go signing
  • 🔒 Secure signature storage
  • 👍 User-friendly interface

Room to Improve

  • 🐛 Signature not appearing in documents
  • 🐛 Signature quality issues (faint, thin)
  • 💰 Expensive subscription
  • 🔒 Concerns about unauthorized charges
Acrobat Reader: PDF Editor#2

Acrobat Reader: PDF Editor by Adobe Inc.

Documents Converter & Signer
Strong Contender
💼 Business
4.6😞(651K ratings)
FreeIn-App Purchases
#2in Business
Acrobat Reader: PDF Editor screenshot 1
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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
Signeasy: Sign PDF Documents#3

Signeasy: Sign PDF Documents by Glykka LLC

Signature Maker & Creator App
Worth Considering
📊 Productivity
4.9😊(34K ratings)
FreeIn-App Purchases
Signeasy: Sign PDF Documents screenshot 1
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Signeasy: Sign PDF Documents screenshot 5
Signeasy: Sign PDF Documents screenshot 6

Easily sign and send documents for electronic signatures from your mobile devices. All signatures are legally binding and include a digital audit trail for security and compliance. Works across multiple platforms and integrates with cloud storage.

What We Love

  • ⭐ Excellent app
  • 🚀 Easy and convenient to use
  • 👍 Intuitive and user-friendly
  • 🔒 Secure and trustworthy
  • 💻 Essential for business needs
  • 📝 Streamlines document signing

Room to Improve

  • 💰 Expensive subscription model
  • 🔒 Restrictive for non-subscribers
  • 🐛 Occasional bugs and glitches
  • 🔄 Inconsistent app updates
  • 🕰️ Slow performance at times

More Digital Sign PDF apps to explore

FAQ about Digital Sign PDF

What are the best digital sign pdf apps for iPhone?
e Signature Scanner, Sign PDF tops our digital sign pdf apps ranking as of August 2026, with a 4.6-star average from 2K App Store ratings, and it's free to download.
Yes — 20 of the top digital sign pdf apps we rank are free to download, including e Signature Scanner, Sign PDF and Acrobat Reader: PDF Editor.
e Signature Scanner, Sign PDF has no ads and offers in-app purchases, according to its App Store listing as of August 2026.
We track 248+ digital sign pdf apps on the iOS App Store as of August 2026, ranked by rating, recency, and analysis of real user reviews.
This app allows you to capture your real handwritten signature from paper using your phone's camera. It then automatically cleans and refines the signature, making it transparent and professional for use on digital documents like PDFs, contracts, and forms.
You can open any PDF file directly within the app. Once your signature is scanned and ready, you can apply it to the document. The app provides a simple way to sign and share your files directly from your phone without needing to print or rescan.