PDF Watermark Assistant vs Umbra Browser
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PDF Watermark Assistant
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PDF Watermark Assistant — Your Professional PDF Watermarking Tool Need to add anti-counterfeiting marks to important documents? Or want to stamp your work with your exclusive brand? PDF Watermark Assistant focuses on providing you with the ultimate custom watermark experience. Say goodbye to cookie-cutter fixed templates and take control of every detail of your watermark! [Fully Customizable Watermarks] Provides comprehensive and in-depth watermark parameter configurations without missing a single detail. All parameters are open for free adjustment, allowing the watermark to perfectly fit your document needs and creating a unique, exclusive watermark effect. · Font Size Support Whether you need an eye-catching warning watermark or a low-key, subtle identifier, you can freely set the font size to meet the visual presentation needs of different document scenarios. · Text Color & Opacity Adjustment Choose your exclusive text color at will to match your corporate brand image or personal preference; precisely adjust the watermark opacity to effectively declare copyright without blocking the main text content, achieving a perfect balance between protection and readability. · Precise Rotation Control Supports custom watermark tilt angles, making it easy to achieve the classic diagonal full-page anti-counterfeiting effect. Precise angle control makes the layout more professional and standard, giving you peace of mind against unauthorized copying. · Line & Letter Spacing Adjustment Say no to cluttered or sparse layouts! By finely adjusting the line spacing and letter spacing, the watermark layout becomes well-proportioned and uniform. Maintain visual aesthetics while covering the entire page, making the watermark a part of the document layout art. Why Choose PDF Watermark Assistant? Focused on PDF watermarks, pure functionality without bloat What you see is what you get, real-time preview of parameter adjustments Attention to detail, the top choice for layout enthusiasts and perfectionists Download PDF Watermark Assistant now, and dress your PDF documents in a tailor-made professional “protective suit”! — Privacy Policy please visit: https://docs.qq.com/doc/DREt1SXJkbG9JYUFT * **Terms of use (EULA): * https://docs.qq.com/doc/DREdKR2ZwYUJaa1hr * **Terms of apple please visit: * https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Umbra Browser
A privacy-focused browser that isolates each tab into a secure vault, blocking ads and trackers. It offers encrypted bookmarks, anti-fingerprinting, and optional integration with a password manager. All features are available for free.
- Tab isolation with per-tab data destruction
- Built-in ad and tracker blocking
- Anti-fingerprinting technologies
- Encrypted bookmarks and DNS-over-HTTPS
- Optional password manager integration
- Reader mode for distraction-free browsing
- Userscript support for custom functionality
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Umbra is a privacy-first browser that treats your data the way it should be treated: as yours alone. Every feature is free. EVERY TAB IS A VAULT Each tab runs in its own isolated container. Cookies, cache, and localStorage are completely separated between tabs and destroyed the moment you close one. No browsing history is ever written to disk. BLOCK ADS & TRACKERS Umbra blocks ads, trackers, and fingerprinting scripts using built-in content blocking powered by EasyList and EasyPrivacy. See exactly what's blocked with the per-tab privacy shield. Tap the shield icon for a full breakdown of blocked ads, trackers, and scripts. Your all-time blocked count now shows on the new tab page, and you can open a shareable privacy report at any time. Turn on an optional weekly reminder to see what Umbra blocked that week. SAVE LOGINS TO PASSPONY If you use PassPony, our open-source password manager, Umbra can save new logins straight to it as you browse. They are encrypted with your own keys and stay on your device. No accounts, nothing sent to us. ANTI-FINGERPRINTING Canvas fingerprinting, WebGL probing, navigator sniffing. Umbra neutralizes the most common fingerprinting techniques by injecting protections at the browser level. ENCRYPTED EVERYTHING HTTPS-first browsing with automatic upgrade and HTTP warning interstitials. Encrypted DNS-over-HTTPS with your choice of provider (Cloudflare, Google, Quad9, and more). Bookmarks encrypted with AES-256-GCM, key stored in your Keychain. SSL certificate inspector: tap the lock icon to verify any site's certificate. SMART PRIVACY FEATURES Automatic UTM parameter stripping on every URL. DuckDuckGo as default search engine (Startpage and Brave Search also available). Per-site whitelist to disable blocking where needed. Share sheet strips tracking parameters automatically. BOOKMARKS Import your bookmarks from Safari, Chrome, or Firefox using their exported bookmarks file. Everything you save is encrypted at rest with your Keychain-stored key. READER MODE Distraction-free reading with a clean, fast-loading text view. No ads, no popups, no clutter. USERSCRIPTS Install custom userscripts to extend Umbra's functionality. Inject JavaScript on any page: block elements, restyle sites, or add features. SESSION RESTORE Pick up where you left off. Umbra saves your open tabs and restores them on launch. COMMAND PALETTE A quick-access command palette to switch tabs, open bookmarks, search history, and navigate. OPEN SOURCE Umbra is open source under the MPL-2.0 license. Read the code at github.com/norsehorse-dev/UmbraBrowser. ALL FEATURES INCLUDED Everything is free with no restrictions. Custom DNS providers, advanced blocklists, userscripts, session restore, encrypted bookmarks, and every privacy feature, available to all users. Built by NorseHorse. No ads. No tracking. No compromises. Terms of Use: https://umbrabrowser.app/eula Privacy Policy: https://umbrabrowser.app/privacy
Screenshots
Verdict
The clearest difference is price: Umbra Browser at Free against PDF Watermark Assistant's $0.99. Umbra Browser also leads on update cadence (every 2 months vs every 5 months). PDF Watermark Assistant's advantage is in-app purchases (none vs 3). On ads, device support 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
Umbra Browser is free to download; PDF Watermark Assistant costs $0.99 up front. Umbra Browser sells 3 in-app purchases, starting at $3.99 per month. PDF Watermark Assistant asks for nothing beyond the download.
PDF Watermark Assistant ships an update every 5 months, Umbra Browser every 2 months. The most recent releases landed on October 28, 2026 and October 18, 2026 respectively.
| Parameter | PDF Watermark Assistant | Umbra Browser |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | — | 1.0 (1 ratings) — better |
| Positive reviews | — | 0.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Every 5 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Free |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 16.6 — better | 17.6 |
| Further details — not scored | ||
| Size | 5 MB | 3 MB |
| Age rating | 4+ | 17+ |
| Developer | 乐祥 胡 | Kevin Stewart |
In-app purchases
PDF Watermark Assistant
No in-app purchases
Umbra Browser
- Eclipse Monthly$3.991 Month
- Eclipse Yearly$29.991 Year
- Eclipse Lifetime$59.99
Questions
Is PDF Watermark Assistant free?
Is Umbra Browser free?
Do PDF Watermark Assistant or Umbra Browser have ads?
Which is updated more often, PDF Watermark Assistant or Umbra Browser?
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