PDF Masker vs DocuMaster
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PDF Masker
Easily mask sensitive keywords in PDF files before sharing. Import PDFs, specify multiple keywords, and customize redaction colors. Export as text or image-based PDFs for secure data sharing.
- Import PDFs via Share menu
- Bulk keyword redaction
- Export as text or image PDF
- Multiple keyword support
- Customizable redaction color
- Save keyword histories
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Protect your sensitive information before sharing files with others. PDF Masker is a powerful security tool that lets you search and black out specific keywords across your PDF documents automatically. Import any PDF directly from your device using the Share menu. Enter your target keywords, and the app instantly hides matching text so you can send your documents safely. You can choose to export your final file as a searchable text-based PDF or as an image-based PDF. The image-based option is perfect when you want to permanently erase underlying text data so it can never be copied or recovered. Key Features - Smart Bulk Redaction: Enter a keyword and automatically mask every single match across the entire document. - Multiple Keywords Support: Separate multiple terms using spaces or commas to clear different pieces of data at once. - 100 Item History Tracker: Saves up to 100 of your frequently used keywords so you can reapply them with a single tap. - Custom Redaction Colors: Change the color of your redaction blocks from classic blackout to white or any custom tone. - Flexible File Loading: Easily load files from your system file picker, in-app web browser, or straight from other apps via the Share extension. - 100 Percent Offline Security: All processing happens locally on your phone or tablet. Your private and confidential documents are never sent to external servers. - Clean and Fast User Interface: Designed to be clean, fast, and simple for everyone, with no complex setup required. Whether you are hiding account numbers, blurred names, personal addresses, or sensitive corporate contracts, PDF Masker helps you prevent data leaks on the go.
DocuMaster
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DocuMaster is the all-in-one document toolkit for iPhone and iPad. Reduce PDF file size, scan paperwork with AI, merge documents, organize pages, convert Word to PDF, and compress photos — everything you need in one fast, beautifully designed app. 20 FREE credits to get started - no subscription required! KEY FEATURES: AI-POWERED DOCUMENT SCANNER • Intelligent edge detection for perfect scans • Auto-enhancement for crystal clear documents • Multi-page scanning for contracts, receipts & more • Save as high-quality PDF instantly PDF COMPRESSOR — 4 Distinct Quality Levels Each level uses different compression algorithms for clearly different results: • High Quality: 20-40% smaller, near-original clarity • Balanced: 40-60% smaller, ideal for sharing • Maximum Compression: 60-80% smaller, optimized for storage • AI Smart: 30-70% smaller, content-aware optimization DOCX TO PDF CONVERTER • Convert Word documents to PDF in seconds • Preserve formatting and fonts perfectly • No file size limits • Works completely offline PDF ORGANIZER & MERGER • Combine multiple PDFs into one • Rearrange pages with drag & drop • Delete unwanted pages • Extract specific pages IMAGE COMPRESSOR • Reduce photo and image file sizes while preserving visual quality. • Choose from multiple compression levels. • Share or save compressed images directly. PRIVACY & SECURITY: All document processing happens on your device or via secure encrypted connections. Your files are never stored on external servers. No tracking. No ads in the processing flow. FLEXIBLE CREDIT SYSTEM • Start with 20 free credits • Watch rewarded ads for more credits • Purchase affordable credit packs • Upgrade to Lifetime Pro for unlimited access BEAUTIFUL & INTUITIVE • Dark/Light mode support • Clean, modern interface • Fast and responsive • Regular updates Perfect for: • Students scanning notes and assignments • Professionals managing contracts • Small businesses handling paperwork • Anyone going paperless Download DocuMaster today and take control of your documents! Questions or feedback? Contact us at support@enigit.com
Screenshots
Verdict
The clearest difference is update cadence: PDF Masker at monthly against DocuMaster's every 4 months. PDF Masker also leads on device support (3 vs 1). On price, ads, in-app purchases and iOS requirement 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
Both are free to download. PDF Masker sells 1 one-off in-app purchase and DocuMaster sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
PDF Masker ships an update monthly, DocuMaster every 4 months. The most recent releases landed on October 15, 2026 and October 9, 2026 respectively.
| Parameter | PDF Masker | DocuMaster |
|---|---|---|
| Price | Free | Free |
| Rating | 2.0 (1 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Monthly — better | Every 4 months |
| Ads | Yes | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 16.6 |
| Further details — not scored | ||
| Size | 14 MB | 28 MB |
| Age rating | 4+ | 4+ |
| Developer | Kazuhisa Kobayashi | Manpreet Singh |
In-app purchases
PDF Masker
- Remove Ads$4.99
DocuMaster
- 10 Credits$0.99
- 50 Credits$3.99
- 150 Credits$9.99
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- Lifetime Pro$19.99









