Comparison

PDF Pro vs Scanner HD

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

Head to head
About

PDF Pro

Edit, annotate, and read PDF documents on your iPhone and iPad. Highlight text, add notes, shapes, voice recordings, and photos. Search your entire PDF library, fill out forms, and sign documents.

Highlights
  • Edit and annotate PDFs
  • Highlight text and add notes
  • Embed audio and photo annotations
  • Full-text search of PDF library
  • Fill out and sign PDF forms
  • Organize PDFs with folders and tags
  • Import from cloud storage
Features
Read full description

PDF Pro lets you read, edit and annotate your PDF documents directly on your iPhone and iPad. Highlight text, take notes, embed shapes or draw with your finger. You can even embed voice recordings or photo annotations. Full-text-search your entire PDF library with just a single tap. Above all PDF Pro comes with full-featured PDF form and signature support. Key-Features At A Glance: • POWERFUL SEARCH: ∙ Full-text-search your entire PDF library. ∙ Search inside specific documents with easy navigation through the search results. ∙ Look-up selected text directly on Wikipedia or in the included dictionaries. • FILE-MANAGEMENT: ∙ Group your PDFs in folders and tag them with colorful labels. ∙ Import PDFs from your Dropbox®, Microsoft OneDrive® or Google Drive®. ∙ Add PDFs via USB or WiFi. ∙ Open E-Mail attachments. • CLEAR VIEW: ∙ Easily browse through all your annotations. ∙ Full PDF outline support. You can even search the outline. ∙ Get an overview of all your bookmarked or annotated pages just with a single tap. • SHARE and PRINT: ∙ Easily share your annotated documents with your friends or co-workers. ∙ Print your annotated and edited PDFs. ∙ You can even share or print single pages of a document. • HIGH SPEED and STABILITY: ∙ Rapid viewing of PDF documents. ∙ Smooth display of very large PDF files. • NIGHT MODE: ∙ Makes reading in the dark much easier on the eyes. • SECURITY: ∙ Support for password-protected PDFs • AND MUCH MORE... Premium Features and Premium Offer include: • ANNOTATIONS and NOTES: ∙ Highlight text, take notes or draw with your finger. ∙ Powerful shape editor for arrows, rectangles, circles, lines and much more. ∙ Embed audio and photo annotations into your PDFs. ∙ Use predefined stamps or create your own. • DOCUMENT EDITOR: ∙ Create new pages. ∙ Export pages or merge them into existing documents. ∙ Reorder, rotate and delete pages. • CONTENT EDITOR: • Modify the existing content of PDF documents. • MULTITASKING: ∙ Work with multiple PDFs at a time. ∙ Copy and paste annotations, shapes, images or text from one PDF document into another. • FORM SUPPORT: ∙ Just fill out your PDF form, sign it with your handwritten signature and you are ready to send it via E-Mail or print it via AirPrint®. A monthly or annual subscription is required to get access to all premium features and premium offer. --- Subscriptions automatically renew monthly or yearly depending on your plan unless auto-renew is turned off at least 24-hours before the end of the current period. Plans are priced at $3.99USD monthly and $24.99USD yearly (pricing may vary in countries other than the U.S.). Payment will be charged to your App Store Account at confirmation of purchase. To avoid automatic renewal, you must turn off auto-renew at least 24 hours before your subscription ends. You can turn off auto-renew at any time from your App Store Account Settings. Terms of Use: https://pdf-pro.net/terms-of-service/ Privacy Policy: https://pdf-pro.net/privacy-policy/

About

Scanner HD

Transform your smartphone into a powerful document scanner. Easily capture, edit, sign, and share PDFs and images. Features advanced OCR for text recognition in 14 languages and seamless cloud integration.

Highlights
  • Scan documents with smartphone camera
  • Auto crop and multi-page PDF creation
  • Text recognition (OCR) in 14 languages
  • Edit, sign, and share PDFs/images
  • Convert scans to TXT, PNG, JPG, PDF
  • Cloud storage integration
  • Password protection for scans
Features
Read full description

Scanner HD is portable and handy for people who want to replace a traditional physical scanner with a scanning app on iPhone. With smartphone camera, Scanner HD App can automatically or manually capture documents, auto crop edges, and scan multiple pages documents to one clean PDF or PNG file for editing, signing and sharing online. Scanner HD app is great at scanning varieties of paper or digital document types, including rebate forms, tax documents, business cards, photos, and even books. Anyone who wants free scanning with excellent text-recognition (OCR) results, Scanner HD, which can recognize 14 languages, is your best option. In addition to PDF, you are allowed to save, export, convert and share in PNG, TXT and word. Scanner HD App also offers features like custom folders for better organization, file renaming, iCloud syncing, and uploading to your cloud storage services. Do more with Scanner HD: - Digitize important documents: ID card, photos, receipts, pictures, books, passport, handwritten notes, legal documents, or the occasional form - Turn scanned image or pdf into text, so you can read, select, copy and export - Create, add and save digital signature - Enhance scan quality: Change scan type settings (Black & White, Original, Scans, Magic, Grayscale, Threshold); adjust Contrast and Brightness - Convert any scan into editable TXT, PNG, JPG, PDF for free - Protect scans with password and share securely - Recognizes the text in 14 languages: Simplified Chinese, Traditional Chinese, English, French, German, Italian, Japanese, Polish, Portuguese, Russian, Spanish, Swedish, Danish, Turkish - Quickly sharing and saving unlimited pages to Dropbox, Box, Google Drive, OneDrive, WhatsApp, Facebook, LinkedIn for free This app contains subscription: - You can subscribe for premium account to remove ads - Subscription is from $9.99 USD monthly, $4.99 weekly, $39.99 yearly - Subscription automatically renews for the same price and duration period as the original "one month"/"one week"/"one year" package unless auto-renew is turned off at least 24-hours before the end of the current period - Payment will be charged to iTunes Account at confirmation of purchase - 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 forfeited when the user purchases a subscription to that publication, where applicable Privacy Policy: https://scannerhd.com/privacy.html Terms of Use: https://scannerhd.com/terms.html

Screenshots

PDF Pro4 screens
Scanner HD4 screens

Verdict

The call

The clearest difference is monetization model: Scanner HD at free with in-app purchases against PDF Pro's subscription. Scanner HD also leads on update cadence (fortnightly vs every 2 months) and iOS requirement (15.0 vs 17.0). PDF Pro's advantage is ads (none vs shown) and ratings volume (6.9K vs 312). On price, rating, review sentiment and in-app purchases 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 Pro sells 12 in-app purchases, starting at $1.99 per month and Scanner HD 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 — 4.7 for PDF Pro against 4.8 for Scanner HD. That said, the two scores are not equally well evidenced: PDF Pro has 6.9K ratings behind it against 312, so its average is the more settled of the two. Written reviews are what separate them: 60% of PDF Pro's written reviews are positive against 54% of Scanner HD's.

UpkeepUpdate frequency

PDF Pro ships an update every 2 months, Scanner HD fortnightly. The most recent releases landed on September 24, 2026 and September 22, 2026 respectively.

Scorecard5 real differences · 5 level
PDF Pro versus Scanner HD: the parameters behind the verdict, then further details
ParameterPDF ProScanner HD
PriceFreeFree
Rating4.7 (6.9K ratings)4.8 (312 ratings) — better
Positive reviews60.3% of reviews — better54.2% of reviews
Number of ratings6.9K — better312
Update frequencyEvery 2 monthsFortnightly — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationSubscriptionFree with in-app purchases — better
DevicesiPhone, iPad, Mac — betteriPhone, iPod
Requires iOS17.015.0 — better
Further details — not scored
Size91 MB129 MB
Age rating4+4+
DeveloperDominic RodemerAllpro Mobile Apps

Customer experience

PDF Pro

All ratings6,925 ratings
Positive93.4%
Neutral3.2%
Negative3.3%
Written reviews423 reviews
Positive60.3%
Neutral10.4%
Negative29.3%

Scanner HD

All ratings312 ratings
Positive94.9%
Neutral1.6%
Negative3.5%
Written reviews177 reviews
Positive54.2%
Neutral2.3%
Negative43.5%

User reviews

PDF Pro

From 6.9K App Store ratings

What we love

  • 👍 User-friendly interface
  • 🚀 Fast and efficient
  • 💡 Excellent PDF management features
  • 🔒 Secure and reliable
  • 🎨 Great annotation tools

Room to improve

  • 🐛 Crashes and stability issues
  • 💰 Expensive subscription model
  • 🔍 Inconsistent search functionality
  • 📖 Loses last read position
  • 🖋️ Unreliable handwriting support

Scanner HD

From 312 App Store ratings

What we love

  • 🚀 Efficient scanning
  • 👍 Easy to use
  • 💡 Helpful for work/school
  • 🚀 Fast and convenient

Room to improve

  • 🐛 Crashes and freezes
  • 💰 Expensive subscription
  • 📢 Too many ads
  • 🔒 Difficult to cancel subscription

Bugs and requests

PDF Pro

Reported bugs

5 issues
  • Annotations and highlights randomly disappearing
  • Compatibility issues with newer iOS versions
  • Corrupted PDF files after editing
  • Slow performance on older devices
  • Inconsistent behavior when switching between PDFs

Requested features

5 requests
  • Improved bookmarking and note-taking
  • Seamless iCloud/cloud storage integration
  • Customizable keyboard shortcuts
  • Advanced text editing and OCR capabilities
  • Better organization and folder management

Scanner HD

Reported bugs

3 issues
  • Scans not saving properly
  • Compatibility issues on tablets
  • Unreliable performance

Requested features

3 requests
  • Improved PDF handling
  • Ability to save scans to gallery
  • Better language support

In-app purchases

12 purchases

PDF Pro

Subscriptions12
  • Offer - Monthly - macOS3 Days trial$1.991 Month
  • Offer - Monthly - iOS3 Days trial$2.991 Month
  • Premium - Monthly - iOS3 Days trial$3.991 Month
Show 9 more
  • Premium - Monthly - macOS3 Days trial$4.991 Month
  • Offer - Annual - iOS3 Days trial$12.991 Year
  • Offer - Annual - macOS3 Days trial$22.991 Year
  • Premium - Annual - iOS3 Days trial$24.991 Year
  • Offer - macOS + iOS3 Days trial$24.991 Year
  • Offer - iOS + macOS3 Days trial$29.991 Year
  • Premium - Annual - macOS3 Days trial$44.991 Year
  • Premium - iOS + macOS3 Days trial$49.991 Year
  • Premium - macOS + iOS3 Days trial$49.991 Year
3 purchases

Scanner HD

Subscriptions3
  • ScannerHd_weekly3 Days trial$4.997 Days
  • PDF Scanner App Monthly3 Days trial$9.991 Month
  • ScannerHd_yearly3 Days trial$39.991 Year

Questions

Is PDF Pro free?
PDF Pro is free to download, with in-app purchases available.
Is Scanner HD free?
Scanner HD is free to download, with in-app purchases available.
Which has better reviews, PDF Pro or Scanner HD?
Scanner HD is rated higher. PDF Pro averages 4.7 out of 5 from 6.9K ratings, while Scanner HD averages 4.8 from 312 ratings.
Do PDF Pro or Scanner HD have ads?
Scanner HD shows ads; PDF Pro does not.
Which is updated more often, PDF Pro or Scanner HD?
PDF Pro ships an update every 2 months, and Scanner HD fortnightly. Most recently, PDF Pro was updated on September 24, 2026 and Scanner HD on September 22, 2026.

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