Comparison

Document Scanner vs PDF Guru:Sign & Watermark

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

Head to head
About

Document Scanner

Easily digitize and manage your documents with this app. Scan, edit, extract text using OCR, and add electronic signatures to various documents like IDs, invoices, and receipts. Save and share your files as PDFs quickly.

Highlights
  • Scan documents and ID cards
  • Edit scanned documents
  • Add electronic signatures
  • Extract text with OCR
  • Save and share as PDF
Read full description

Document Scanner: PDF Scan is a document management application that integrates many useful features, helping users scan, edit, extract text and sign documents quickly and efficiently. Scan everything: ID cards, legal agreements, invoices, purchase orders, receipts, articles, bills, debit notes, business documents... - Scan documents The Document Scanner application allows users to scan paper documents into digital copies in just a few seconds. High-quality scanning, take photos of documents with the phone camera or import photos from the library. Automatic recognition: Detect document edges and intelligently crop for neat scans. - Digitize ID cards/passports Scan everything: ID cards, legal agreements, invoices, purchase orders, receipts, articles, bills, debit notes, business documents... - Edit After scanning documents, users can edit directly in the application. Crop and rotate pages: Adjust the size and orientation of the document as desired. - Signature Allow users to sign documents electronically without printing them out. Sign any scanned document with your signature. Create and save custom signatures for easy future use. Insert signature easily: Position the signature in the right place on the document. - Extract Text (OCR) The Document Scanner app integrates Optical Character Recognition (OCR) technology, allowing users to extract text from word documents easily. Convert and edit quickly. - Save and share: Save and share as PDF simply and quickly. Download Document Scanner: PDF Scan App today and enter a world where document scanning is as fast, easy, and reliable as you need it to be. Your mobile office is waiting in the palm of your hand! Privacy Policy: https://docsbizsuite.pro.vn//privacy-policy.html Term of use: https://docsbizsuite.pro.vn/termsofuse-ios-dcl.html

About

PDF Guru:Sign & Watermark

Easily scan, edit, and organize PDF documents. Add custom watermarks, logos, and signatures to professionalize your files. Convert various formats to PDF and manage your documents efficiently.

Highlights
  • AI-powered PDF scanning
  • Custom text and logo watermarks
  • Electronic signatures and annotations
  • PDF merging, splitting, and compression
  • OCR text recognition
  • File conversion to PDF
  • Document organization and search
Features
Read full description

Use PDF Guru to make every PDF clearer, more organized, and more professional. Whether you are scanning paper documents, studying files, or handling contracts, quotations, plans, and internal materials, PDF Guru gives you a simple one-stop PDF experience. It supports reading, editing, conversion, compression, merging, splitting, and file organization, and is especially useful for documents that need external presentation, team circulation, or branding. Add custom identifiers, watermarks, and logos to make files easier to recognize, share, deliver, and manage. PDF Scanning and Recognition -AI Scanning: Automatically capture paper documents, receipts, notes, certificates, and business cards. -Auto Edge Detection: Identify borders and correct scan angles. -Scanning Guidance: Use 5 scanning frames to align content and capture complete pages. -Image Optimization: Choose from 3 scanning modes for clearer results. -Batch Scanning: Scan multiple pages continuously and merge them into one PDF. -Scan to PDF: Generate high-quality PDFs for saving, sharing, and editing. -OCR Text Recognition: Recognize page text for selection, copying, highlighting, and annotation. Professional Document Marking -Add Watermark: Create custom text watermarks with adjustable color, transparency, size, rotation, and tiling. Apply them to all pages with one tap for anti-copying, file attribution, internal circulation, and standardized management. -Add Logo: Upload custom logo images and add brand, company, or personal marks to PDFs. Apply logos to all pages, save them to the logo library, and quickly reuse them for contracts, quotations, proposals, and promotional materials. Powerful Editing -PDF Annotation: Add highlights, underlines, and strikethroughs to make key content clear. -Fill and Insert Text: Fill forms or add text directly without converting files. -Electronic Signature: Sign with your finger for faster document processing. -Free Drawing: Scribble, circle, and mark key points freely. Advanced PDF Tools -Merge PDF: Combine multiple PDF files into one new document. -Split PDF: Extract selected pages or page ranges into new PDFs. -Lock PDF: Add password protection to sensitive files. -Compress PDF: Choose compression modes to balance file size and clarity. Efficient File Management -Local File Library: Manage local documents in one place. -Starred Files: Save important files and quickly access frequently used documents. -Multiple Sorting Methods: Sort by name, date, size, and more. -Keyword Search: Find files quickly and avoid repeated searching. PDF Conversion -Convert to PDF: Convert Word, Excel, PowerPoint, and images to PDF with one tap. -Batch Conversion: Upload multiple files and convert them to PDF at once. Download PDF Guru for a faster and easier document workflow. Whether you need to scan paper documents, read PDFs and e-books, edit PDFs, convert formats, compress files, or manage documents, PDF Guru provides lightweight and powerful support for study, work, and daily file processing. Privacy Policy: https://www.meuponline.com/pdfguru/privacy.html Terms of Service: https://www.meuponline.com/pdfguru/service.html

Screenshots

Document Scanner4 screens
PDF Guru:Sign & Watermark4 screens

Verdict

The call

The clearest difference is ads: PDF Guru:Sign & Watermark at none against Document Scanner's shown. PDF Guru:Sign & Watermark also leads on update cadence (monthly vs every 4 months). Document Scanner's advantage is device support (3 vs 1). On price, rating, ratings volume 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. Document Scanner sells 2 in-app purchases, starting at $9.99 per month and PDF Guru:Sign & Watermark sells 4 in-app purchases, starting at $9.99 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 — 5.0 for Document Scanner against 5.0 for PDF Guru:Sign & Watermark. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

UpkeepUpdate frequency

Document Scanner ships an update every 4 months, PDF Guru:Sign & Watermark monthly. The most recent releases landed on October 23, 2026 and October 29, 2026 respectively.

Scorecard3 real differences · 7 level
Document Scanner versus PDF Guru:Sign & Watermark: the parameters behind the verdict, then further details
ParameterDocument ScannerPDF Guru:Sign & Watermark
PriceFreeFree
Rating5.0 (1 ratings)5.0 (1 ratings)
Positive reviews100.0% of reviews—
Number of ratings11
Update frequencyEvery 4 monthsMonthly — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.6 — better16.0
Further details — not scored
Size76 MB202 MB
Age rating4+4+
DeveloperNguyen Thuy LinhSharpmobi ltd

Customer experience

Document Scanner

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

PDF Guru:Sign & Watermark

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

2 purchases

Document Scanner

Subscriptions2
  • Monthly - Document scan$9.991 Month
  • Yearly - Document scan3 Days trial$45.491 Year
4 purchases

PDF Guru:Sign & Watermark

Subscriptions4
  • Unlock All Features$9.997 Days
  • Unlock All Features3 Days trial$9.997 Days
  • Unlock All Features7 Days trial$9.997 Days
Show 1 more
  • Unlock All Features$59.991 Year

Questions

Is Document Scanner free?
Document Scanner is free to download, with in-app purchases available.
Is PDF Guru:Sign & Watermark free?
PDF Guru:Sign & Watermark is free to download, with in-app purchases available.
Which has better reviews, Document Scanner or PDF Guru:Sign & Watermark?
Document Scanner and PDF Guru:Sign & Watermark are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.
Do Document Scanner or PDF Guru:Sign & Watermark have ads?
Document Scanner shows ads; PDF Guru:Sign & Watermark does not.
Which is updated more often, Document Scanner or PDF Guru:Sign & Watermark?
Document Scanner ships an update every 4 months, and PDF Guru:Sign & Watermark monthly. Most recently, Document Scanner was updated on October 23, 2026 and PDF Guru:Sign & Watermark on October 29, 2026.

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