Comparison

PDF Expert vs Automatic Screenshot Stitcher

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

Automatic Screenshot Stitcher

Easily combine multiple sequential screenshots into a single, long image. This app uses advanced computer vision for automatic alignment and stitching, all processed offline for enhanced data privacy. Share more content conveniently without needing multiple images.

Highlights
  • Automatic screenshot stitching
  • Offline processing
  • Combines sequential screenshots
  • Creates long images
  • Data privacy focused
Features
Read full description

Have you ever wanted to share a screenshot but struggled to fit all content into one screen? Screenshot Stitcher allows you to combine multiple sequential screenshots into one long image and share with more convenience. -- Automatic Stitching Screenshot Stitcher uses state of the art computer vision algorithms to discover how your screenshots align and combine, creating amazing results in seconds! -- Works Offline Screenshot Stitcher works offline using the computational power of your mobile device to combine your images so your data is never sent to the internet or external web servers in respect to your data privacy. Screenshot Stitcher is now available for all iOS devices! ---- Terms of Use: https://stitchscreenshots.web.app/terms.html Privacy Policy: https://stitchscreenshots.web.app/privacy.html

Screenshots

PDF Expert4 screens
Automatic Screenshot Stitcher2 screens

Verdict

The call

The clearest difference is rating: PDF Expert at 4.7 against Automatic Screenshot Stitcher's 4.1. PDF Expert also leads on review sentiment (46% vs 17%) and ratings volume (216K vs 75). Automatic Screenshot Stitcher's advantage is update cadence (weekly vs fortnightly). 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 10 in-app purchases, starting at $9.99 per month and Automatic Screenshot Stitcher sells 2 in-app purchases, starting at $1.99 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 4.1. That said, the two scores are not equally well evidenced: PDF Expert has 216K ratings behind it against 75, so its average is the more settled of the two. Written reviews point the same way: 46% of PDF Expert's written reviews are positive against 17% of Automatic Screenshot Stitcher's.

UpkeepUpdate frequency

PDF Expert ships an update fortnightly, Automatic Screenshot Stitcher weekly. The most recent releases landed on September 25, 2026 and September 20, 2026 respectively.

Scorecard5 real differences · 6 level
PDF Expert versus Automatic Screenshot Stitcher: the parameters behind the verdict, then further details
ParameterPDF ExpertAutomatic Screenshot Stitcher
PriceFreeFree
Rating4.7 (216K ratings) — better4.1 (75 ratings)
Positive reviews46.0% of reviews — better16.7% of reviews
Number of ratings216K — better75
Update frequencyFortnightlyWeekly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
Best chart rank#71 — better—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.015.6 — better
Further details — not scored
Size307 MB29 MB
Age rating4+4+
DeveloperReaddle Technologies LimitedArthur Eduardo Skaetta Alvarez Desenvolvimento de Software LTDA.

Customer experience

PDF Expert

All ratings215,975 ratings
Positive92.4%
Neutral2.3%
Negative5.3%
Written reviews1,136 reviews
Positive46.0%
Neutral7.5%
Negative46.6%

Automatic Screenshot Stitcher

All ratings75 ratings
Positive77.3%
Neutral2.7%
Negative20.0%
Written reviews12 reviews
Positive16.7%
Neutral8.3%
Negative75.0%

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

Automatic Screenshot Stitcher

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
2 purchases

Automatic Screenshot Stitcher

Subscriptions1
  • Screenshot Stitcher Monthly1 Month trial$1.991 Month
One-time1
  • Screenshot Stitcher Premium$2.99

Questions

Is PDF Expert free?
PDF Expert is free to download, with in-app purchases available.
Is Automatic Screenshot Stitcher free?
Automatic Screenshot Stitcher is free to download, with in-app purchases available.
Which has better reviews, PDF Expert or Automatic Screenshot Stitcher?
PDF Expert is rated higher. PDF Expert averages 4.7 out of 5 from 216K ratings, while Automatic Screenshot Stitcher averages 4.1 from 75 ratings.
Do PDF Expert or Automatic Screenshot Stitcher have ads?
Neither PDF Expert nor Automatic Screenshot Stitcher shows ads.
Which is updated more often, PDF Expert or Automatic Screenshot Stitcher?
PDF Expert ships an update fortnightly, and Automatic Screenshot Stitcher weekly. Most recently, PDF Expert was updated on September 25, 2026 and Automatic Screenshot Stitcher on September 20, 2026.

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