Comparison

PDF Expert vs PDF Converter

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

PDF Converter

Easily convert, edit, and manage PDF documents. This tool allows for conversion to and from various formats, scanning, annotation, form filling, and document organization. It also offers AI-powered summarization and security features.

Highlights
  • Convert PDF to Word, Excel, PowerPoint, and JPG
  • Scan documents with OCR text recognition
  • Annotate, highlight, and draw on PDFs
  • Fill and sign PDF forms
  • Compress, merge, split, and rotate PDFs
  • Secure PDFs with password protection
  • AI-powered summarization
Features
Read full description

Convert, annotate, sign, and summarize PDFs with AI in seconds PDF Converter App – A powerful and easy-to-use tool that helps you edit, convert, and manage PDF documents quickly and efficiently. Key features of the app: PDF CONVERTER • Image to PDF: Instantly convert photos, receipts, or ID cards into high-quality PDFs with a single tap. • Convert PDF to Word and vice versa: Convenient when you need to edit a Word file but only have a PDF version, or when you want to convert a Word document into a PDF. • JPG to PDF: Easily convert document images into PDF format. • MS Office Converter: Convert Word, Excel, and PowerPoint files into high-quality PDFs . You can also convert PDFs back into editable Office formats (Word, Excel, PowerPoint). • Extract images from PDF: Extract high-quality images from PDFs or convert your own images into one or multiple PDFs. AI CHAT PDF • Chat with any PDF: Ask questions and get instant answers from your document — an AI assistant built for your PDFs. • Summarize & explain: Turn long reports, contracts, or research papers into clear summaries and key points in seconds. • Multi-file chat: Chat across multiple PDFs in one conversation to compare and connect information. QUICK SCAN • iPhone & iPad Scanner: Quickly capture images of documents, receipts, or any printed material and save them as PDFs. Supports multi-page PDFs for longer documents. • Text Recognition (OCR): Convert any scanned image or document into highly accurate text. PDF EDITOR • Annotate PDF: Highlight, comment, draw, or insert images into your PDFs. Choose from various annotation formats to fit your needs. • Fill out and sign forms: Fill out and sign PDF forms easily with your finger or stylus. • PDF Reader: View, edit, and organize PDFs stored on your device or in the cloud. OPTIMIZE, ORGANIZE, AND SECURE DOCUMENTS • Compress PDF: Reduce file size while maintaining your document quality. • Merge PDF: Combine multiple PDFs into a single, organized document. • Split PDF: Extract specific pages from your PDF or split large documents into smaller, more manageable files. • Rotate PDF: Rotate individual pages and adjust their alignment within your document. • Secure PDF: Add or remove password protection from your PDFs for enhanced security. • Add page numbers: Customize page numbers in your PDF with options for position, font, and size. • Watermark PDF: Add a custom watermark (text or image) to your PDFs with adjustable transparency and position. With PDF Converter, all your PDF document issues are resolved quickly and efficiently. The app supports cross-platform usage, helping you work anytime, anywhere. Download now to experience outstanding, easy-to-use features that offer maximum convenience for your work and studies! Upgrade to Premium: • Unlimited conversions, scans, and exports — no daily limits. • No ads and no watermark for a clean, distraction-free experience. • Unlock every tool: multi-page PDF, password protection, OCR text extraction, e-signature, and all PDF editing features. • PDFConverter subscription is billed monthly or weekly to the selected plan. Payment will be charged to iTunes Account at confirmation of purchase. Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. • Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase Let us know about any bugs, questions, feature requests or any other suggestions. Thank you For more infos, Please visit: https://apps.unitvn.com/terms https://apps.unitvn.com/policy

Screenshots

PDF Expert4 screens
PDF Converter4 screens

Verdict

The call

The clearest difference is rating: PDF Expert at 4.7 against PDF Converter's 4.2. PDF Expert also leads on ads (none vs shown) and ratings volume (216K vs 21). PDF Converter's advantage is update cadence (weekly vs fortnightly). On price, in-app purchases, monetization model and device support 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 PDF Converter sells 7 in-app purchases, starting at $5.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

PDF Expert holds the better App Store score, 4.7 against 4.2. That said, the two scores are not equally well evidenced: PDF Expert has 216K ratings behind it against 21, so its average is the more settled of the two.

UpkeepUpdate frequency

PDF Expert ships an update fortnightly, PDF Converter weekly. The most recent releases landed on September 24, 2026 and September 13, 2026 respectively.

Scorecard5 real differences · 6 level
PDF Expert versus PDF Converter: the parameters behind the verdict, then further details
ParameterPDF ExpertPDF Converter
PriceFreeFree
Rating4.7 (216K ratings) — better4.2 (21 ratings)
Positive reviews46.0% of reviews—
Number of ratings216K — better21
Update frequencyFortnightlyWeekly — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
Best chart rank#67 — better—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.015.5 — better
Further details — not scored
Size307 MB155 MB
Age rating4+4+
DeveloperReaddle Technologies LimitedUnitVN.,JSC

Customer experience

PDF Expert

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

PDF Converter

All ratings21 ratings
Positive81.0%
Neutral0.0%
Negative19.0%

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

PDF Converter

Not enough reviews yet to summarise bugs or requests.

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
7 purchases

PDF Converter

Subscriptions7
  • PDF Converter Weekly$5.997 Days
  • Weekly Premium$7.997 Days
  • PDF Converter Weekly3 Days trial$9.997 Days
Show 4 more
  • Monthly Premium$29.991 Month
  • Yearly package3 Days trial$44.991 Year
  • PDF Converter yearly$49.991 Year
  • Yearly package1 Month trial$69.991 Year

Questions

Is PDF Expert free?
PDF Expert is free to download, with in-app purchases available.
Is PDF Converter free?
PDF Converter is free to download, with in-app purchases available.
Which has better reviews, PDF Expert or PDF Converter?
PDF Expert is rated higher. PDF Expert averages 4.7 out of 5 from 216K ratings, while PDF Converter averages 4.2 from 21 ratings.
Do PDF Expert or PDF Converter have ads?
PDF Converter shows ads; PDF Expert does not.
Which is updated more often, PDF Expert or PDF Converter?
PDF Expert ships an update fortnightly, and PDF Converter weekly. Most recently, PDF Expert was updated on September 24, 2026 and PDF Converter on September 13, 2026.

Other comparisons