Comparison

PDF Expert vs Convert to PDF

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

PDF Expert is a fast and easy PDF app to read, annotate, fill and sign PDF forms, convert files to PDF, and merge, split or compress documents – all in one intuitive app for iPhone, iPad, Mac & Vision Pro. Read PDF files with comfort, highlight and mark up text, fill out forms, sign contracts, create and convert PDFs, and summarize long documents in seconds with AI-powered tools. Unlock unlimited possibilities with PDF Expert Premium and work across all your Apple devices. "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 - PDF reader with Day, Night, and Sepia modes for comfortable reading anytime - Scroll PDFs vertically or horizontally and search text in any document - Open and view PDF files from email, web, Files, or any app via the Share menu - Read PDFs out loud with Text to Speech ANNOTATE AND MARK UP PDFs - Highlight, underline, and strike through text in your PDFs - Mark up documents with pen, shapes, text, notes, and comments - Add stamps such as Approved or Confidential - Record your voice and add audio notes to PDFs FILL AND SIGN PDF FORMS - Fill out PDF forms with text fields, checkboxes, and radio buttons - Sign PDF documents in seconds – draw your signature or add it from an image - Save your signature to sign contracts, agreements, invoices, and applications faster - Fill, sign, and send forms right from your iPhone – no printing or scanning needed - Supports all major form formats, including AcroForms and static XFA forms ***PREMIUM FEATURES*** EDIT PDFs - Edit text directly in a PDF – just as you would in a Word document - Add, replace, and resize images in your PDFs - Add links to other pages or websites - Add outlines to navigate large PDFs CREATE AND CONVERT PDFs - Create PDFs from Word files, images, and other documents - Convert Word to PDF, JPG to PDF, and PNG to PDF in seconds - Convert PDF to Word, Excel, PowerPoint, JPG, PNG, and TXT MERGE, SPLIT AND ORGANIZE PDFs - Merge and combine multiple PDF files into one - Split PDFs and extract pages into a new file - Add, delete, rotate, and reorder pages with thumbnail preview COMPRESS PDFs - Compress PDFs to reduce file size for email and sharing - Shrink large PDF files to save space on your device SUMMARIZE PDFs WITH AI – PDF COPILOT - List Main Points – get key takeaways from any PDF - Summarize – get concise summaries of entire PDFs or annotations - Ask Anything – find details with AI answers and references - Explain – get instant explanations of words or phrases PROTECT YOUR FILES - Password-protect PDF Expert - Redact – permanently black out sensitive information WORK WITH SCANNED DOCUMENTS - Open scanned PDFs to fill out, sign, annotate, and share CONSTRUCTION TOOLS - Scale and measure drawings with the Measure tab - Polygon, polyline, and redline tools MORE FEATURES - Customizable toolbar - Presentation Mode - Print and share PDFs via email or cloud ONE ACCOUNT FOR ALL YOUR APPLE DEVICES One Premium subscription covers PDF Expert on iPhone, iPad, and Mac – no need to buy versions separately. 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

Convert to PDF

Easily convert documents, images, and text files into high-quality PDFs. Supports a wide range of formats including Word, Excel, JPG, and PNG. Offers batch conversion and secure processing without watermarks.

Highlights
  • Convert Word, Excel, PowerPoint to PDF
  • Convert images (JPG, PNG, HEIC) to PDF
  • Convert text and Markdown to PDF
  • Merge multiple images into one PDF
  • Batch conversion of multiple files
  • Secure processing with immediate file deletion
  • No watermarks on converted PDFs
Features
Read full description

Transform your documents, images, and text files into PDF format with PDFOn — your powerful all‑in‑one PDF converter. CONVERT OFFICE DOCUMENTS TO PDF • Word to PDF: Convert DOC and DOCX files to PDF in seconds while preserving formatting, fonts, and layout. • Excel to PDF: Export XLS and XLSX spreadsheets to professional, shareable PDF documents. • PowerPoint to PDF: Convert PPT and PPTX presentations into PDFs for universal viewing. IMAGE TO PDF CONVERTER • Convert JPG, JPEG, PNG, BMP, GIF, WEBP, and HEIC photos to high‑quality PDF. • Merge multiple images into a single PDF or convert pictures individually. TEXT AND MARKDOWN TO PDF • Text to PDF: Turn plain TXT files into formatted PDFs. • Markdown to PDF: Export MD files to beautifully formatted PDFs with preserved styling. KEY FEATURES • Fast PDF converter with cloud processing. • Supports 15+ document and image formats. • Batch conversion of multiple files simultaneously. • High‑quality output with smart compression. • No watermarks on converted PDFs. • Secure processing — files deleted immediately after conversion. • Works with all standard PDF readers. HOW TO CONVERT WITH PDFON 1. Select file type: Word, Excel, Image, Text, or Markdown. 2. Choose files from your device. 3. Tap Convert to PDF. 4. Download and share your PDF. WHY CHOOSE PDFON Complete support for document and image conversion needs — whether you need Word to PDF, Excel to PDF, images to PDF, or text to PDF, PDFOn handles it all in one app. SUBSCRIPTION INFORMATION PDFOn offers premium features through auto‑renewable subscriptions. Payment is charged to your iTunes Account at confirmation of purchase, and your subscription automatically renews unless auto‑renew is turned off at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period. You can manage subscriptions and turn off auto‑renewal in Account Settings after purchase. Any unused portion of a free trial period, if offered, will be forfeited when you purchase a subscription. Privacy Policy: https://www.pdfon.pro/legal/privacy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula

Screenshots

PDF Expert4 screens
Convert to PDF4 screens

Verdict

The call

The clearest difference is rating: PDF Expert at 4.7 against Convert to PDF's 2.0. PDF Expert also leads on ratings volume (217K vs 1) and chart position (#83 vs unranked). On price, ads, in-app purchases and monetization model 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 9 in-app purchases, starting at $9.99 per month and Convert to PDF sells 2 in-app purchases, starting at $4.99 per month. 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 2.0. That said, the two scores are not equally well evidenced: PDF Expert has 217K ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

PDF Expert ships an update fortnightly, Convert to PDF monthly. The most recent releases landed on November 8, 2026 and November 5, 2026 respectively.

Scorecard4 real differences · 7 level
PDF Expert versus Convert to PDF: the parameters behind the verdict, then further details
ParameterPDF ExpertConvert to PDF
PriceFreeFree
Rating4.7 (217K ratings) — better2.0 (1 ratings)
Positive reviews45.2% of reviews—
Number of ratings217K — better1
Update frequencyFortnightly — betterMonthly
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
Best chart rank#83 — better—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.015.1 — better
Further details — not scored
Size301 MB51 MB
Age rating4+4+
DeveloperReaddle Technologies LimitedSoufiane Bouziane

Customer experience

PDF Expert

All ratings216,255 ratings
Positive92.4%
Neutral2.3%
Negative5.3%
Written reviews1,186 reviews
Positive45.2%
Neutral7.5%
Negative47.3%

Convert to PDF

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%

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

Convert to PDF

Not enough reviews yet to summarise bugs or requests.

In-app purchases

9 purchases

PDF Expert

Subscriptions8
  • 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 5 more
  • PDF Expert Premium7 Days trial2 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 & iOS7 Days trial$79.991 Year
One-time1
  • PDF Expert Basic$9.99
2 purchases

Convert to PDF

Subscriptions2
  • Monthly Subscription$4.991 Month
  • Yearly Subscription$29.991 Year

Questions

Is PDF Expert free?
PDF Expert is free to download, with in-app purchases available.
Is Convert to PDF free?
Convert to PDF is free to download, with in-app purchases available.
Which has better reviews, PDF Expert or Convert to PDF?
PDF Expert is rated higher. PDF Expert averages 4.7 out of 5 from 217K ratings, while Convert to PDF averages 2.0 from 1 ratings.
Do PDF Expert or Convert to PDF have ads?
Neither PDF Expert nor Convert to PDF shows ads.
Which is updated more often, PDF Expert or Convert to PDF?
PDF Expert ships an update fortnightly, and Convert to PDF monthly. Most recently, PDF Expert was updated on November 8, 2026 and Convert to PDF on November 5, 2026.

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