# PDF Enhance: Upscale & HD Scan — text sharpener & document fix

> Rebuilds blurry document scans into clear, high-fidelity digital files. (iPhone/iPad app by 伟童 陈.)

- Source: https://appshunter.io/ios/app/pdf-enhance-upscale-and-hd-scan/id6755619814 (this page in markdown: same URL + `.md`)
- Developer: [伟童 陈](https://appshunter.io/developer/1788240998)
- Category: Productivity, Business
- Price: Free with in-app purchases
- Age rating: 9+
- Requires: iOS 17.0 · 22 MB
- Languages: Arabic, Catalan, Croatian, Czech, Danish, Dutch, English, Finnish, French, German and 22 more
- Released: 2026-02-17
- Data updated: 2026-08-06
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/pdf-enhance-upscale-and-hd-scan/id6755619814/reviews.md

## What is PDF Enhance?

Turn Blurry Scans Into Professional Originals. Stop settling for unreadable documents. PDF Enhance is a precision reconstruction tool designed to rebuild your files from the ground up. In one tap, transform faded, noisy, or low-quality images into crisp, high-fidelity documents that look like they were born digital.

RECONSTRUCTION, NOT RETOUCHING.
Traditional scanners just adjust brightness; we rebuild clarity. Our advanced processing engine analyzes document structures to sharpen text edges, restore lost details, and deliver a clean, professional finish to every page. From historic archives to yesterday’s receipt, we bring every detail back into focus.

Key Features
• High-Definition Text Sharpening: Automatically identifies and refines text characters, eliminating blur and maximizing readability.
• Intelligent Background Cleanup: Instantly purges distracting shadows, paper creases, and digital noise for a pure, professional white background.
• Document Fidelity Restoration: Preserves the authenticity of official stamps and signatures while enhancing the overall visual quality.
• Precision Geometry Correction: Automatically flattens tilted photos and fixes perspective for a perfect, top-down digital view.

Privacy & Security
YOUR DOCUMENTS ARE YOURS ALONE. We believe document security is a fundamental right. PDF Enhance is built with a "Privacy-First" architecture:
• Encrypted Transmission: All files are transferred via end-to-end encrypted channels (TLS 1.3).
• Zero-Data-Logging: We never store, view, or use your documents for any other purpose. We don't build profiles on you, and we don't keep your data.
• No Account Required: Start enhancing immediately without sharing your personal information.

PREMIUM FEATURES (requires subscription or in-app purchase)
• Sharpen blurry text for clearer scans.
• HD document output, crystal-clear.
• Remove noise, shadows & artifacts.
• Faster results & ad-free.

---

Subscription Details:

• Payment will be charged to your iTunes Account upon confirmation of purchase.
• Subscriptions automatically renew unless auto-renew is turned off at least 24 hours before the end of the current period.
• Manage your subscriptions and turn off auto-renewal in your Account Settings after purchase.

---

In case of any questions, issues or collaboration requests, contact us at xciris2024@gmail.com

Terms and Conditions: https://pdfenhance.com/terms-of-service
Privacy Policy: https://pdfenhance.com/privacy-policy

## Key features

- High-definition text sharpening
- Intelligent background cleanup
- Document fidelity restoration
- Precision geometry correction
- Privacy-first architecture
- Encrypted transmission

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Pdf Enhance Premium | $39.99 | per year |
| Pdf Enhance Premium | $6.99 | per 7 days |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Pdf Enhance Pack | $9.99 | one-time |
| Pdf Enhance Pack | $39.99 | one-time |


## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/pdf-enhance-upscale-and-hd-scan/id6755619814/reviews.md

### 1/5 — This is an ABSOLUTE SCAM.

*2026-03-20*

Pay for the subscription, but to use the subscription for the scan feature, it will cost you 440 credits, which means there is only one option, 1,000 credits at 39.99.  Once you attempt to use it on a file, it tells you “failed to convert the first page”, which costs you more leaves you with 280 credits (I’m not sure how that math works).  Which then sends you to the “buy more credits”, requiring, you guessed it, 1,000 more credits at 39.99.

**Developer response:** Sorry for causing trouble to you. You may encounter the problem of task failure, but the program supports retrying tasks and does not deduct new credits. If you have any questions, you can contact us by email at any time. Thank you.

## Frequently asked questions about PDF Enhance

### Does PDF Enhance have ads?

Yes, PDF Enhance contains advertisements. Users can remove ads and access premium features through a subscription or in-app purchase.

### What is the pricing for PDF Enhance premium features?

Premium features, including ad-free experience and HD output, require a subscription or in-app purchase. Specific pricing details are available within the app's store listing or during the purchase process.

### How does PDF Enhance handle user privacy?

PDF Enhance employs a "Privacy-First" architecture with end-to-end encrypted transmission (TLS 1.3) and zero-data logging. Documents are not stored, viewed, or used for any other purpose, and no account is required to use the app.

### What devices does PDF Enhance support?

Currently, PDF Enhance is supported on iPhone devices. Information regarding support for other platforms may be available in future updates.

### How often is PDF Enhance updated?

The latest version of PDF Enhance is 1.0.4, last updated on March 27, 2026. Update frequency can vary, but users can expect ongoing improvements and bug fixes.

### What is the age rating for PDF Enhance?

PDF Enhance has an age rating of 9+, indicating it is suitable for users aged 9 and above.

### Can I cancel my PDF Enhance subscription?

Yes, subscriptions automatically renew unless auto-renewal is turned off at least 24 hours before the end of the current period. You can manage your subscriptions and turn off auto-renewal in your Account Settings after purchase.

### What makes PDF Enhance different from simple retouching tools?

Unlike tools that only adjust brightness, PDF Enhance uses an advanced processing engine to rebuild document clarity from the ground up. It sharpens text edges, restores lost details, and cleans backgrounds for a professional finish.

## Version history (last 5 releases)

### 1.0.5 — 2026-07-13

Bug fixes, improved runtime stability

### 1.0.4 — 2026-03-27

Bug fixes, improved runtime stability

### 1.0.3 — 2026-03-09

Bug fixes, improved runtime stability

### 1.0.2 — 2026-02-24

Improved enhancement quality and speed. Sharper text, cleaner backgrounds.

### 1.0.1 — 2026-02-17

No release notes.

## Apps similar to PDF Enhance

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [PDF Clarity](https://appshunter.io/ios/app/pdf-clarity/id1572059454) | 5.0 (1) | Free | Productivity |
| [Photo Scanner : Scan to PDF](https://appshunter.io/ios/app/photo-scanner-scan-to-pdf/id1632804507) | 5.0 (2) | Free | Productivity |
| [Quick Doc Scanner](https://appshunter.io/ios/app/quick-doc-scanner/id6740235244) | — | Free | Productivity |
| [CameraScan:Document Scanner](https://appshunter.io/ios/app/camerascandocument-scanner/id6475565461) | 5.0 (2) | Free | Productivity |
| [Photo to PDF Converter-Scanner](https://appshunter.io/ios/app/photo-to-pdf-converter-scanner/id6778522652) | — | Free | Productivity |
| [Smart PDF Compressor Offline](https://appshunter.io/ios/app/smart-pdf-compressor-offline/id6760960875) | — | Free | Productivity |

## More apps by 伟童 陈

- [DeepSpark: Image Enhance](https://appshunter.io/ios/app/deepspark-image-enhance/id6741092168)

All apps by 伟童 陈: https://appshunter.io/developer/1788240998

## Related topics

[enhancer document](https://appshunter.io/ios/topics/enhancer-document)

---

*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 2026-08-06.*