Comparison

PDF Reader vs PDF Converter & PDF Scanner

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 & PDF Scanner

This app acts as a portable PDF assistant, allowing users to scan, edit, and convert documents and photos into PDF format. It offers high-quality scanning, smart OCR for text recognition, and versatile editing tools. Convert PDFs to various formats and secure your files with encryption.

Highlights
  • High-quality scanning
  • Smart OCR text recognition
  • All-in-one PDF editing
  • Format conversion (Word, Excel, images)
  • Secure file encryption
  • Add text, images, annotations, signatures
Features
Read full description

Your portable PDF assistant: easily scan,Clean-scan ,edit and convert! This is an intuitive and powerful PDF tool that allows you to effortlessly handle PDFs and enjoy a convenient experience. Whether you're scanning photos or paper documents, editing PDF content, or converting file formats, it's all made easy. Key Features: -High-Quality Scanning: Easily scan paper documents using your phone's camera to generate high-definition PDF files, with support for automatic cropping and image enhancement. -Smart OCR: Equipped with a powerful OCR text recognition engine, it can convert text in scanned documents into editable text, allowing you to copy, edit, translate, and more. -All-in-One Editing: Supports a variety of editing operations on PDF files, including adding text, images, annotations, signatures, watermarks, and more, meeting all your needs. -Format Conversion: Converts PDF files into various formats such as Word, Excel, and images, making it easy for further editing and sharing. -Secure Encryption: Utilizes advanced encryption technology to protect your PDF files and prevent information leaks. Whether you're a student, business professional, designer, or everyday user, you can efficiently handle PDF documents, easily edit PDF materials, and enjoy a convenient digital life. Download now to experience efficient and convenient PDF processing! About Subscription: Subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period. Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal. Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user’s Account Settings after purchase. Any unused portion of a free trial period, if offered, will be automatically invalidated when the user purchases the applicable subscription. Privacy Policy: https://sites.google.com/view/pdfpp/home Terms of Use: https://sites.google.com/view/pdftou/home

Screenshots

PDF Reader4 screens
PDF Converter & PDF Scanner4 screens

Verdict

The call

The clearest difference is ads: PDF Reader at none against PDF Converter & PDF Scanner's shown. PDF Reader also leads on ratings volume (3.5K vs 91). PDF Converter & PDF Scanner's advantage is update cadence (every 8 days vs every 2 months) and review sentiment (98% vs 81%). 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 & PDF Scanner sells 3 in-app purchases, starting at $4.99 per 7 days. 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 4.6 for PDF Converter & PDF Scanner. That said, the two scores are not equally well evidenced: PDF Reader has 3.5K ratings behind it against 91, so its average is the more settled of the two. Written reviews are what separate them: 81% of PDF Reader's written reviews are positive against 98% of PDF Converter & PDF Scanner's.

UpkeepUpdate frequency

PDF Reader ships an update every 2 months, PDF Converter & PDF Scanner every 8 days. The most recent releases landed on September 24, 2026 and August 27, 2026 respectively.

Scorecard4 real differences · 6 level
PDF Reader versus PDF Converter & PDF Scanner: the parameters behind the verdict, then further details
ParameterPDF ReaderPDF Converter & PDF Scanner
PriceFreeFree
Rating4.5 (3.5K ratings)4.6 (91 ratings) — better
Positive reviews80.9% of reviews97.9% of reviews — better
Number of ratings3.5K — better91
Update frequencyEvery 2 monthsEvery 8 days — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFreemiumFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS13.0 — better14.0
Further details — not scored
Size190 MB42 MB
Age rating4+17+
DeveloperKdan Mobile Software LTD家俊 张

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 & PDF Scanner

All ratings91 ratings
Positive90.1%
Neutral1.1%
Negative8.8%
Written reviews48 reviews
Positive97.9%
Neutral0.0%
Negative2.1%

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 & PDF Scanner

Not enough reviews yet to summarise bugs or requests.

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
3 purchases

PDF Converter & PDF Scanner

Subscriptions3
  • 1 week7 Days trial$4.997 Days
  • 1 month1 Month trial$16.991 Month
  • 1 year$39.991 Year

Questions

Is PDF Reader free?
PDF Reader is free to download, with in-app purchases available.
Is PDF Converter & PDF Scanner free?
PDF Converter & PDF Scanner is free to download, with in-app purchases available.
Which has better reviews, PDF Reader or PDF Converter & PDF Scanner?
PDF Converter & PDF Scanner is rated higher. PDF Reader averages 4.5 out of 5 from 3.5K ratings, while PDF Converter & PDF Scanner averages 4.6 from 91 ratings.
Do PDF Reader or PDF Converter & PDF Scanner have ads?
PDF Converter & PDF Scanner shows ads; PDF Reader does not.
Which is updated more often, PDF Reader or PDF Converter & PDF Scanner?
PDF Reader ships an update every 2 months, and PDF Converter & PDF Scanner every 8 days. Most recently, PDF Reader was updated on September 24, 2026 and PDF Converter & PDF Scanner on August 27, 2026.

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