Comparison

PDF Reader 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 Reader

Edit, convert, and manage PDF documents on your mobile device. This app allows you to directly edit text, scan documents, fill out forms, and secure your files with passwords and watermarks. It also supports OCR to extract text from scans and convert PDFs to various formats.

Highlights
  • Edit PDF text directly
  • Convert PDF to Word, Excel, PPT, images
  • OCR for text extraction from scans
  • Fill and sign PDF forms
  • Secure PDFs with passwords and watermarks
  • Annotate PDFs with highlights and notes
  • Merge and split PDF files
Features
Read full description

KDAN PDF, formerly KDAN PDF Reader, is a mobile PDF editor and reader for iPhone, iPad, and Mac. Edit text directly on your device. Then scan, organize, convert, sign, and share your PDFs in one simple and powerful app. Trusted by millions, KDAN PDF connects your workflow across iPhone, iPad, and Mac, making it easy to review, annotate, and finalize documents anywhere. Who Recommends Us? - Featured as “10 Essentials” in Utility on iTunes - Featured in “10 Best PDF Reader Apps For iPhone & iPad 2019” by FOSSBYTES - Featured as “Best Utility App” in App Store Rewind KEY FEATURES PDF EDITOR • Edit and correct any typos directly on PDFs • Merge multiple files into one PDF • Split a large PDF into several small PDFs • Rotate, delete, add, and rearrange pages • Extract pages or images from PDFs • Change PDF background color PDF CONVERTER • Online & Offline PDF converter • Convert PDF to Word, Excel, PPT & image conversions (docx, xlsx, pptx, jpg, png, gif & bmp). • Save webpages and images as PDFs OCR (Optical Character Recognition) • Recognize and extract text from scans • Export OCR results as text or searchable PDFs • Support 50+ languages SIGN, FORM FILLING, SHARE • Fill out & edit PDF forms • Sign on PDFs • Customize and manage signatures SHARE FILES • Get files from KDAN Cloud, iCloud Drive, Dropbox, OneDrive, Google Drive, Evernote, FTP, or WebDAV client • Compress PDFs • Share flatten PDFs • Send faxes directly from within the app PDF SECURITY • Add passwords to lock PDFs • Remove passwords & restrictions from PDFs • Add & remove PDF watermarks • Validate certificates & signatures in PDF documents VIEW FILES • Supports all mainstream file formats, including Vitrium* PDF format (Like University of Phoenix Ebooks) • Text Reflow & Auto Flow • Present a PDF as a slideshow • View multiple PDFs as tabs • Dark mode supported (only for iOS13 & macOS Mojave and later) • Convert text to spoken audio (text-to-speech) ANNOTATE & REVIEW PDF • Annotate PDFs with highlights, underlines, strikeout text, shapes, sticky notes & text boxes • Add pre-designed stamps, including Approved, Sign Here, Confidential, and more • Add custom stamps with time and date information • Insert hyperlinks to external websites, target pages, and email address • Attach audio notes & insert images to PDFs • Turn handwriting into text with Scribble (Available for iPad) • Add handwritten notes to PDFs MANAGE ANNOTATIONS • Save annotations in XFDF format • Remove all annotations in one tap - Recommended by Techradar, Techworm & Softsonic UPGRADE OPTIONS DOCUMENT 365 • Try for $0.00 for 7 days • Access KDAN PDF on Mac, iPhone, iPad, and other platforms. • Annual plan: billed at USD 59.99/year after the 7-day free trial ends • Quarterly plan: billed at USD 19.99/quarter after 3-day free trial ends • Monthly plan: billed at USD 9.99/month after 3-day free trial ends Subscriptions will be charged to your Apple account upon purchase and will auto-renew 24 hours before the current period ends at the same price and duration. Cancellation during the active period is not allowed. Manage your trial and subscription in your Apple account. Terms of service: https://pdf-reader.kdandoc.com/terms-of-service Privacy Policy: https://pdf-reader.kdandoc.com/privacy-policy Got a question? Contact us at helpdesk@kdanmobile.com or check out https://support.kdanmobile.com

About

PDF Converter

Easily find, create, convert, and edit PDF documents. Search for PDFs online, convert various file types to PDF, and download multiple files simultaneously. Annotate and highlight text within your documents.

Highlights
  • Search PDFs online
  • Create PDFs from websites
  • Convert documents to PDF
  • Download multiple PDFs
  • Edit and annotate PDFs
  • File management
Read full description

PDF Converter let you find, create, convert and edit PDF document. Main Features: - PDF Finder : search PDF file with google. - PDF Converter: create pdf from a website, convert document files (doc, docx, ppt, pptx) to PDF. - PDF Downloader: download multiple pdf files at same time. - PDF Editor: read and edit pdf document with necessary to such as text highlight, annotation. - File Manager: delete or transfer saved file to other devices. If you need tool which help you find pdf or convert news, recipes, exam from a website, PDF Converter would be right choice. Read more about Privacy Policy and Terms of Use: Privacy Policy : https://slidingstone.com/privacy Term of Use : https://slidingstone.com/terms Enjoy.

Screenshots

PDF Reader4 screens
PDF Converter4 screens

Verdict

The call

The clearest difference is ads: PDF Reader at none against PDF Converter's shown. PDF Reader also leads on review sentiment (81% vs 54%) and update cadence (every 2 months vs every 4 months). PDF Converter's advantage is ratings volume (18K vs 3.5K). On price, rating, 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 Reader sells 10 in-app purchases, starting at $2.99 per month and PDF Converter sells 2 one-off in-app purchases. 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 — 4.5 for PDF Reader against 4.5 for PDF Converter. Both are backed by a comparable volume of ratings — 3.5K and 18K respectively. Written reviews are what separate them: 81% of PDF Reader's written reviews are positive against 54% of PDF Converter's.

UpkeepUpdate frequency

PDF Reader ships an update every 2 months, PDF Converter every 4 months. Both last shipped on September 24, 2026.

Scorecard4 real differences · 6 level
PDF Reader versus PDF Converter: the parameters behind the verdict, then further details
ParameterPDF ReaderPDF Converter
PriceFreeFree
Rating4.5 (3.5K ratings)4.5 (18K ratings)
Positive reviews80.9% of reviews — better54.5% of reviews
Number of ratings3.5K18K — better
Update frequencyEvery 2 months — betterEvery 4 months
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFreemiumFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.013.0
Further details — not scored
Size190 MB13 MB
Age rating4+17+
DeveloperKdan Mobile Software LTDAnh Duong

Customer experience

PDF Reader

All ratings3,542 ratings
Positive89.2%
Neutral2.7%
Negative8.2%
Written reviews2,194 reviews
Positive80.9%
Neutral4.8%
Negative14.3%

PDF Converter

All ratings17,506 ratings
Positive86.9%
Neutral3.3%
Negative9.8%
Written reviews325 reviews
Positive54.5%
Neutral3.1%
Negative42.5%

User reviews

PDF Reader

From 3.5K App Store ratings

What we love

  • 👍 Good app
  • 🚀 Fast and efficient
  • 📚 Useful for reading PDFs
  • 🔒 Secure file storage
  • 💡 Helpful features like highlighting and annotation

Room to improve

  • 🐛 Crashes and freezes
  • 🔐 Locked files behind paywall
  • 💰 Expensive subscription
  • 📢 Intrusive ads
  • 🤯 Confusing and unintuitive UI

PDF Converter

From 18K App Store ratings

What we love

  • 🚀 Fast and efficient
  • 👍 Easy to use
  • 💡 Helpful for converting files to PDF

Room to improve

  • 🐛 Crashes and freezes
  • 💰 Expensive with in-app purchases
  • 🤔 Confusing interface
  • 🔍 Difficulty finding and selecting files

Bugs and requests

PDF Reader

Reported bugs

3 issues
  • Unable to open or access saved files
  • Syncing and backup issues
  • Compatibility problems with newer iOS versions

Requested features

4 requests
  • Improved file management and organization
  • Better integration with cloud storage services
  • More customization options
  • Enhanced accessibility features

PDF Converter

Reported bugs

3 issues
  • Unable to convert photos/files to PDF
  • Purchased upgrades not working as expected
  • App crashing on launch or during use

Requested features

3 requests
  • Allow importing from device storage, not just web
  • Add sorting/organization options for photos
  • Improve stability and reliability

In-app purchases

10 purchases

PDF Reader

Subscriptions9
  • KDAN Cloud$2.991 Month
  • Deluxe Business Pack$5.991 Month
  • Creativity 3653 Days trial$9.991 Month
Show 6 more
  • Document 365 (Month)3 Days trial$9.991 Month
  • Deluxe PDF Pack for iPhone$12.993 Months
  • Creativity 365 - 3 Months3 Days trial$19.993 Months
  • Document 365 (Quarter)3 Days trial$19.993 Months
  • Deluxe PDF Pack for iPhone$39.991 Year
  • Document 3657 Days trial$59.991 Year
One-time1
  • Upgrade to Premium$2.99
2 purchases

PDF Converter

One-time2
  • Pro Version$2.99
  • PDF Converter - Pro Lifetime$3.99

Questions

Is PDF Reader free?
PDF Reader 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 Reader or PDF Converter?
PDF Reader and PDF Converter are both rated 4.5 out of 5 on the App Store, from 3.5K and 18K ratings respectively.
Do PDF Reader or PDF Converter have ads?
PDF Converter shows ads; PDF Reader does not.
Which is updated more often, PDF Reader or PDF Converter?
PDF Reader ships an update every 2 months, and PDF Converter every 4 months. Most recently, PDF Reader was updated on September 24, 2026 and PDF Converter on September 24, 2026.

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