Comparison

PDFToolbox vs Supernote

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

Head to head
About

PDFToolbox

This app offers a suite of tools for local PDF processing, including converting PDFs to images and vice versa, adding text watermarks, and encrypting/decrypting documents with passwords. It prioritizes user privacy by performing all operations on the device without internet access.

Highlights
  • Convert PDF to Image (JPG, PNG, GIF)
  • Convert Image to PDF
  • Add custom text watermarks
  • Encrypt PDFs with passwords
  • Remove PDF password protection
  • Batch export and multi-image processing
Features
Read full description

PDF Toolbox is a powerful PDF processing tool that works entirely on your device, with no internet connection required, ensuring your file privacy and security. We provide comprehensive PDF handling solutions that allow you to easily convert, protect, and customize your PDF documents. Key Features PDF to Image Conversion Transform PDF documents into high-quality images with multiple customization options: • Image format selection: JPG, PNG, or GIF • Result type: Multiple separate images or one large image • Color modes: Color, grayscale, or black & white • Quality levels: Low, medium, high to meet different needs • Batch export: Export all pages with one tap Image to PDF Conversion Easily merge multiple images into PDF documents: • Multi-image processing: Select multiple images simultaneously • Flexible conversion: Merge into a single PDF or generate multiple separate PDFs • Color processing: Color mode, grayscale mode, black & white mode • Source selection: Choose images from your photo library or file system Add Watermark Add professional text watermarks to your PDFs: • Custom watermark text • Adjustable font size • Transparency settings (0-100%) • Rotation angle (0-360°) • Horizontal/vertical spacing control • Automatically applied to all PDF pages Add Password Protect important documents with password encryption: • Secure encryption: Using standard PDF encryption technology • Simple operation: Add password protection with one tap • Secure storage: Encrypted files saved locally only Remove Password Easily remove encryption from PDFs with known passwords: • Enter the correct password to unlock PDF documents • Remove password protection with one tap • Preserve all formatting and content of the original document Our Advantages • Completely local processing: All file processing is performed locally on your device, never uploaded to any servers • Privacy protection: Your document contents remain only on your device • Efficient processing: Optimized processing engine provides fast conversion experience • Rich options: Meet various customization needs for professional users • High-quality output: Maintain the clarity and formatting of original documents Use Cases • Students: Convert study materials, course slides, and e-books • Professionals: Process work documents, add company watermarks or password protection • Designers: Convert PDF designs to images for editing or sharing • Teachers: Add watermarks to teaching materials to prevent unauthorized distribution • Anyone who needs simple, efficient PDF file processing Download PDF Toolbox now and experience professional-grade PDF processing features! END USER LICENSE AGREEMENT (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ PRIVACY POLICY: https://jiw.github.io/PDFToolbox/privacy_policy_en.html

About

Supernote

Features
Read full description

Your Professional Hub for Notes & Tasks • Powerful Rich-Text Editing: Offers comprehensive text formatting tools to make your notes well-structured and highlight key points, meeting all needs from quick jotting to formal documents. • One-Tap Export to Long Image/PDF: Easily turn any note—whether formatted text or mixed with images—into a high-quality long image or PDF, perfect for work reports, study sharing, or content creation. • Native iCloud Instant Sync: Your data syncs securely only through iCloud, with no third-party servers. Edit on one device, and changes appear instantly on your other Apple devices (iPhone, iPad) for a truly seamless workflow. • Unlimited Note Organization: Break free from categorization limits. • Free Image & Text Mixing: Insert pictures or screenshots into rich-text notes anytime for vivid, illustrated records. • Instant-Access Widgets: Place key to-do lists on your Home Screen for a quick glance, making it easy to capture ideas or check tasks. • Break Down Tasks into Subtasks: Decompose to-dos into smaller steps and mark their status individually. • Set Reminders for Notes & Tasks: Never miss important items with notifications for both notes and to-dos. • Simple Yet Powerful Design: We hide advanced features behind intuitive operations. The clean interface and smooth interaction require no learning, yet deliver robust capabilities for demanding users. [Supernote] is an all-in-one notes and tasks app designed for users who pursue efficiency and quality. It not only provides rich text editing for clear, beautiful notes but also effortlessly transforms any content into shareable long images or PDFs. With secure instant iCloud sync, unlimited organization, and minimalist design, it is the ideal choice for recording, organizing, creating, and sharing. Privacy Policy: https://daydayup-tlj.github.io/Supernote/privacy_en.html Terms of Service: https://daydayup-tlj.github.io/Supernote/agreement_en.html

Screenshots

PDFToolbox4 screens
Supernote4 screens

Verdict

The call

The clearest difference is update cadence: Supernote at weekly against PDFToolbox's every 7 months. On price, ads, in-app purchases and device support 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. PDFToolbox sells 3 in-app purchases, starting at $0.99 per 7 days and Supernote sells 2 in-app purchases, starting at $4.99 per year. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

PDFToolbox ships an update every 7 months, Supernote weekly. The most recent releases landed on June 1, 2026 and September 5, 2026 respectively.

Scorecard1 real difference · 8 level
PDFToolbox versus Supernote: the parameters behind the verdict, then further details
ParameterPDFToolboxSupernote
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 7 monthsWeekly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.0 — better15.6
Further details — not scored
Size8 MB31 MB
Age rating4+4+
Developer钊辰 王亮军 涂

In-app purchases

3 purchases

PDFToolbox

Subscriptions2
  • Weekly$0.997 Days
  • Yearly$9.991 Year
One-time1
  • Lifetime$29.99
2 purchases

Supernote

Subscriptions1
  • Year VIP3 Days trial$4.991 Year
One-time1
  • Lifetime Membership$7.99

Questions

Is PDFToolbox free?
PDFToolbox is free to download, with in-app purchases available.
Is Supernote free?
Supernote is free to download, with in-app purchases available.
Do PDFToolbox or Supernote have ads?
Neither PDFToolbox nor Supernote shows ads.
Which is updated more often, PDFToolbox or Supernote?
PDFToolbox ships an update every 7 months, and Supernote weekly. Most recently, PDFToolbox was updated on June 1, 2026 and Supernote on September 5, 2026.

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