# PDFToolbox-Converter/Watermark — PDF to Image, Image to PDF

> Local PDF converter, watermark, and password protection tool. (iPhone/iPad app by 钊辰 王.)

- Source: https://appshunter.io/ios/app/pdftoolbox-converterwatermark/id6744648102 (this page in markdown: same URL + `.md`)
- Developer: [钊辰 王](https://appshunter.io/developer/1791406641)
- Category: Utilities, Business
- Price: Free with in-app purchases
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: 4+
- Requires: iOS 15.0 · 8 MB
- Languages: Arabic, English, French, German, Hindi, Italian, Japanese, Korean, Portuguese, Russian and 3 more
- Released: 2025-04-28
- Data updated: 2026-06-01
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/pdftoolbox-converterwatermark/id6744648102/reviews.md

## What is PDFToolbox?

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

## Key features

- 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

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Weekly | $0.99 | per 7 days |
| Yearly | $9.99 | per year |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Lifetime | $29.99 | one-time |



## Frequently asked questions about PDFToolbox

### Does PDFToolbox have ads?

No, PDFToolbox does not contain advertisements. The app is free to download and use, with optional in-app purchases for additional features or subscriptions.

### What are the subscription options for PDFToolbox?

PDFToolbox offers a weekly subscription for $0.99 and a yearly subscription for $9.99. These plans likely unlock premium features or remove limitations.

### How does PDFToolbox protect my privacy?

PDFToolbox ensures your privacy by processing all files entirely on your device. No documents or data are ever uploaded to any servers, keeping your content secure and private.

### What devices does PDFToolbox support?

PDFToolbox is available for iPhone and iPod devices. It is rated for ages 4 and up, making it suitable for a wide range of users.

### How often is PDFToolbox updated?

The latest version of PDFToolbox is 1.0.2, which was last updated on May 27, 2026. This indicates regular maintenance and feature updates.

### Can I convert multiple images into a single PDF with PDFToolbox?

Yes, PDFToolbox allows you to merge multiple images into a single PDF document. You can also choose to generate multiple separate PDFs from your selected images.

### What image formats can PDFToolbox convert PDFs to?

PDFToolbox can convert PDF documents into JPG, PNG, or GIF image formats. You have options for quality levels, color modes, and whether to export pages as separate images or one large image.

### How do I remove a password from a PDF using PDFToolbox?

To remove password protection, you need to enter the correct password for the PDF document within PDFToolbox. The app can then remove the protection with a single tap, preserving the original document's formatting.

## Version history (last 3 releases)

### 1.0.2 — 2026-05-27

Add support of iOS 26.

### 1.0.1 — 2025-05-13

v1.0.1
Add language support for Japanese, Arabic, French, German, Hindi, Italian, Korean, Portuguese (Portugal), Russian, Spanish, Vietnamese

### 1.0 — 2025-04-28

No release notes.

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## More apps by 钊辰 王

- [WatermarkYourID](https://appshunter.io/ios/app/watermarkyourid/id6751237772)

All apps by 钊辰 王: https://appshunter.io/developer/1791406641

## Related topics

[Kinh Đầu lễ pdf](https://appshunter.io/ios/topics/kinh-u-l-pdf)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-01.*