Comparison

PDF Expert vs Smallpdf

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

PDF Expert

This app allows you to edit, annotate, fill out forms, and convert PDF documents. It offers AI-powered summarization and analysis, along with tools to merge, sign, and protect your files. Work seamlessly across Apple devices with a user-friendly interface.

Highlights
  • Edit PDF text and images
  • Annotate and highlight PDFs
  • Fill out PDF forms
  • Convert files to and from PDF
  • AI-powered summarization and analysis
  • Merge and combine PDF files
  • Sign documents with e-signatures
Features
Read full description

Unlock your potential with a fast and easy PDF Expert app with all the features you need in a well-designed and intuitive user interface. BEST FOR iPHONE, iPAD, MAC & VISION PRO Read PDF files easily, highlight and annotate PDFs, fill out forms, convert any file to PDF, merge several files into one, add notes, summarize and navigate PDF documents in seconds with AI-powered tools. Unlock unlimited possibilities with PDF Expert Premium features and work across all your Apple devices, effortlessly letting you complete any PDF task on the go. “PDF Expert is one of my must-have iPad apps and a desktop-class PDF reader.” – MacStories “The best app for managing, editing, and reading PDFs on your iPad.” – The Sweet Setup ▶ WITH PDF EXPERT, YOU CAN: READ PDFs WITH JOY • Pick Day, Night, or Sepia mode and enjoy reading anytime, anywhere. • Enjoy both vertical and horizontal scrolling. • Export PDF files from email, web, or any app that supports the Apple system-wide Share menu • Use Text to Speech to hear the selected text read out loud HIGHLIGHT AND ANNOTATE PDFs • Mark important info in books using colors, text, or stickers • Add stamps such as Approved, Confidential, etc. • Record your voice and add it to the doc FILL OUT FORMS • Fill out PDF forms using interactive text fields, checkboxes, and radio buttons • All the major form formats support, including acro forms and static XFA forms ***PREMIUM FEATURES *** EDIT PDFs DOCS EASILY • Edit or modify existing text directly in a PDF – just as you would in a Word document • Add links: link any part of the text or image to a different page or website • Add outlines to big PDFs to simplify navigation for hundreds of pages • Easily add, replace, and resize images in your PDFs SUMMARIZE AND ANALYZE HUGE PDFs WITH PDF COPILOT – YOUR SMART AI ASSISTANT • List Main Points – instantly scan and highlight key takeaways from any PDF • Summarize – get concise summaries of entire PDFs, or annotations • Ask Anything – find specific details with AI-powered answers and references • Explain – no more Googling! Get instant, contextual explanations of words or phrases MERGE AND COMBINE PDFs • Merge and combine multiple PDF files into one • Add, delete, and rearrange pages with a thumbnail preview • Rotate and reorder pages in PDFs EDIT SCANNED DOCUMENTS • Access the scanned PDFs that you’ve created using PDF Expert • Open your scans to fill out, sign, comment, and share CONVERT FROM AND TO PDF • Convert PDFs to Word, Excel, PPT, JPG/PNG, TXT, and vice versa • Converts any file in seconds SIGN DOCUMENTS • Use e-signatures to sign contracts on the go • Create custom stamps or import one from the images PROTECT YOUR FILES • Restrict access to PDF Expert with a password • Permanently blackout or erase sensitive information like credit card numbers • Secure and Safe trusted brand software COMPRESS PDFs • Compress large PDF files to save space on your device • Merge several files into one and compress it to reduce the file size CONSTRUCTION TOOLS • Scale and measure drawings using our Measure tab • Polygon and polyline shapes • Redline tools COLLABORATE ON THE GO PDF Expert provides the best platform for paperless collaboration between team members. Annotate and add notes in project materials, fill and sign contracts and invoices, and exchange files via email or cloud on the go. OTHER AMAZING FEATURES: • Fully customizable toolbar • Create a Link (drag and add a landing page or a Web) • Presentation Mode • Print and Share ONE ACCOUNT FOR ALL YOUR APPLE DEVICES Now, you don’t need to purchase Mac and iPhone & iPad versions separately. PDF Expert introduces a single Premium subscription for all your Apple devices. Read more about our terms and conditions here: https://pdfexpert.com/privacy https://pdfexpert.com/terms Don’t hesitate to reach out to us at http://readdle.com/contact

About

Smallpdf

This app offers a comprehensive suite of tools to manage PDF documents. Easily convert, edit, compress, sign, merge, and scan PDFs using your mobile device. It also features OCR technology to convert scanned documents into editable text.

Highlights
  • Convert PDFs to Word, Excel, PPT, JPG, PNG
  • Edit PDFs with text, images, and annotations
  • Compress PDFs to reduce file size
  • Sign PDFs electronically
  • Merge multiple PDF files
  • Scan documents to PDF with OCR
  • Fill out PDF forms
Features
Read full description

Smallpdf: All-In-One PDF Editor and Document Organizer Smallpdf is your go-to PDF tool, designed to simplify your document management. Whether you need to convert, compress, edit, sign, merge, or scan PDFs, our app makes it effortless. Trusted by 2.4 billion people since 2013, Smallpdf offers a seamless PDF experience right at your fingertips. Key Features: Convert PDFs Across All Document Formats Easily: PDF to Word doc PDF to Excel PDF to PPT PDF to JPG PDF to PNG Images to PDF and vice versa! Edit PDFs: Add text, images, and shapes directly in your PDF files Add annotations and highlights easily Rotate, delete, and rearrange PDF pages PDF editing tools Compress PDFs: Reduce the file size of your PDFs without compromising quality Optimize PDFs for sharing and saving storage space Shrink PDF files Compress PDF documents Sign PDFs: Add an e-signature to your documents Digitally sign PDFs securely Electronic signatures for PDFs Merge PDFs: Combine multiple PDF files into one Merge PDF documents Scan Documents to PDF: Use your camera to scan documents, receipts, notes, and more into PDFs Enhance scans with automatic cropping and optimization Convert scanned images to selectable text with OCR Scan image to PDF Scan doc to PDF Scan jpg to PDF Scan receipts to PDF OCR Technology: Convert scanned documents into selectable text with our advanced OCR feature Support for multiple languages OCR PDF converter Why Choose Smallpdf? User-Friendly Interface: Intuitive and easy to navigate, making PDF tasks simpler than ever. Cloud Integration: Access and save your files directly from your local device storage. Privacy and data protection: All uploaded files deleted 1 hour after processing (unless saved locally or to the cloud) Cross-Platform Availability: All major operating systems. Work on your PDFs anytime, anywhere. Fast and Reliable: Quick processing times ensure you can get your work done efficiently. High Security: We prioritize your privacy and data security, complying with GDPR standards. Additional Features: PDF Reader: View and read PDF documents with ease. PDF Scanner: Quickly scan and digitize your paper documents. PDF Filler: Fill out PDF forms and documents electronically. PDF Maker: Create PDFs from various file formats effortlessly. PDF Annotator: Highlight, underline, and strikethrough text in your PDFs. Download Smallpdf Now! Smallpdf is free within a daily task limit. If you would like to try out Smallpdf Pro for unlimited conversions across ALL tools, there’s a free 7-day trial available. The Smallpdf Mobile App is the all-in-one solution for all your document management needs. Simplify your tax return or scan in receipts easily using your camera to save, edit, and manage thousands of documents in all formats. Save backups on the drive or share directly to email to manage your documents on the go! Join 2.4B+ satisfied users and simplify your PDF tasks today. Download Smallpdf and enjoy a free trial of all premium features. Privacy policy: https://smallpdf.com/privacy Terms of use: https://smallpdf.com/support We love feedback, so feel free to send yours to support@smallpdf.com.

Screenshots

PDF Expert4 screens
Smallpdf4 screens

Verdict

The call

PDF Expert and Smallpdf both sit at 4.7 stars, but that hides the real split: 68% of Smallpdf's written reviews are positive against 46% of PDF Expert's. PDF Expert's advantage is ratings volume (216K vs 6.9K) and chart position (#71 vs unranked). On price, rating, update cadence and ads there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. PDF Expert sells 10 in-app purchases, starting at $9.99 per month and Smallpdf sells 8 in-app purchases, starting at $7.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.7 for PDF Expert against 4.8 for Smallpdf. That said, the two scores are not equally well evidenced: PDF Expert has 216K ratings behind it against 6.9K, so its average is the more settled of the two. Written reviews are what separate them: 46% of PDF Expert's written reviews are positive against 68% of Smallpdf's.

UpkeepUpdate frequency

PDF Expert ships an update fortnightly, Smallpdf every 9 days. The most recent releases landed on September 25, 2026 and September 24, 2026 respectively.

Scorecard3 real differences · 8 level
PDF Expert versus Smallpdf: the parameters behind the verdict, then further details
ParameterPDF ExpertSmallpdf
PriceFreeFree
Rating4.7 (216K ratings)4.8 (6.9K ratings) — better
Positive reviews46.0% of reviews68.0% of reviews — better
Number of ratings216K — better6.9K
Update frequencyFortnightlyEvery 9 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
Best chart rank#71 — better—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.015.6 — better
Further details — not scored
Size307 MB159 MB
Age rating4+4+
DeveloperReaddle Technologies LimitedSmallpdf

Customer experience

PDF Expert

All ratings215,851 ratings
Positive92.4%
Neutral2.3%
Negative5.3%
Written reviews1,135 reviews
Positive46.0%
Neutral7.4%
Negative46.6%

Smallpdf

All ratings6,876 ratings
Positive96.1%
Neutral0.9%
Negative3.0%
Written reviews895 reviews
Positive68.0%
Neutral2.7%
Negative29.3%

User reviews

PDF Expert

From 216K App Store ratings

What we love

  • 🚀 Fast and responsive
  • 👍 Intuitive and user-friendly interface
  • 💡 Powerful annotation and editing tools
  • 🔒 Seamless cloud integration
  • 📚 Excellent for reading and organizing PDFs

Room to improve

  • 🐛 Frequent crashes and stability issues
  • 🔒 Subscription model for advanced features
  • 🔒 Inconsistent pricing and feature changes
  • 🔍 Cluttered and confusing UI in latest update
  • 🔍 Reduced customization options for annotations

Smallpdf

From 6.9K App Store ratings

What we love

  • 👍 Easy to use
  • 🚀 Fast and efficient
  • 💡 Useful features
  • 🔒 Secure
  • 🆓 Free to use

Room to improve

  • 🐛 Buggy and crashes
  • 💰 Paid version required for full functionality
  • 🤔 Confusing account management
  • 🤯 Missing key features
  • 🤖 Poor customer support

Bugs and requests

PDF Expert

Reported bugs

4 issues
  • Corrupted PDFs after editing
  • Sync issues with cloud storage providers
  • Unexpected loss of annotations and edits
  • Unreliable performance on older iPad models

Requested features

5 requests
  • Improved palm rejection for Apple Pencil
  • Customizable toolbar and annotation presets
  • Better integration with other productivity apps
  • More flexible file management and organization
  • Ability to create fillable PDF forms

Smallpdf

Reported bugs

5 issues
  • Files not saving properly
  • Conversion issues with larger documents
  • Unexpected crashes and freezes
  • Compatibility problems with older devices
  • Incorrect file content after compression

Requested features

5 requests
  • Add more color options for annotations
  • Improve search functionality for saved documents
  • Enhance iPad compatibility
  • Allow inserting images into PDFs
  • Provide better file management and organization

In-app purchases

10 purchases

PDF Expert

Subscriptions9
  • PDF Expert Premium Trial7 Days trial$9.991 Month
  • PDF Expert Premium No Trial$9.991 Month
  • PDF Expert for Education7 Days trial$39.991 Year
Show 6 more
  • PDF Expert Premium7 Days trial3 variants$49.991 Year
  • PDF Expert Premium New7 Days trial$49.991 Year
  • PDF Expert Premium Existing7 Days trial$49.991 Year
  • PDF Expert – Premium Editing1 Year trial$49.991 Year
  • PDF Expert Mac & iOS Pro7 Days trial$79.991 Year
  • PDF Expert Mac & iOS7 Days trial$79.991 Year
One-time1
  • PDF Expert Basic$9.99
8 purchases

Smallpdf

Subscriptions8
  • Monthly Plan7 Days trial2 variants$7.991 Month
  • Monthly Plan7 Days trial2 variants$11.991 Month
  • Monthly Plan7 Days trial$14.991 Month
Show 5 more
  • Yearly Plan7 Days trial2 variants$49.991 Year
  • Yearly Plan7 Days trial$59.991 Year
  • Yearly Plan$107.991 Year
  • Yearly Plan7 Days trial$107.991 Year
  • Yearly Plan7 Days trial$119.991 Year

Questions

Is PDF Expert free?
PDF Expert is free to download, with in-app purchases available.
Is Smallpdf free?
Smallpdf is free to download, with in-app purchases available.
Which has better reviews, PDF Expert or Smallpdf?
Smallpdf is rated higher. PDF Expert averages 4.7 out of 5 from 216K ratings, while Smallpdf averages 4.8 from 6.9K ratings.
Do PDF Expert or Smallpdf have ads?
Neither PDF Expert nor Smallpdf shows ads.
Which is updated more often, PDF Expert or Smallpdf?
PDF Expert ships an update fortnightly, and Smallpdf every 9 days. Most recently, PDF Expert was updated on September 25, 2026 and Smallpdf on September 24, 2026.

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