# Compress PDF - Make PDF Smaller

> Compress PDF files to reduce their size, preserving quality. (iPhone/iPad app by Cometdocs.com Inc..)

- Source: https://appshunter.io/ios/app/compress-pdf-make-pdf-smaller/id1172431294 (this page in markdown: same URL + `.md`)
- Developer: [Cometdocs.com Inc.](https://appshunter.io/developer/704355169)
- Category: Productivity, Business
- Price: Free with in-app purchases
- Rating: 3.40/5 from 443 App Store ratings · 51 written reviews indexed
- Age rating: 4+
- Requires: iOS 9.3 · 33 MB
- Languages: American English
- Released: 2016-11-15
- Data updated: 2026-06-10
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/compress-pdf-make-pdf-smaller/id1172431294/reviews.md

## What is Compress PDF?

Make your PDF documents smaller right on your iPhone or iPad with this fast and easy to use app. Just select PDF document from your phone, or from Gmail, Google Drive, Dropbox, Box, and OneDrive, and it will be compressed in just a couple of seconds on average. Depending on your document, it can be compressed significantly or just a little bit. Quality of your document is preserved. Compressions are performed on our powerful servers, so the app won't drain your battery or burden your phone's processor or RAM. After compression is done, the result is downloaded into the app, and your files are deleted from our servers.

## Key features

- Compress PDF documents
- Upload from cloud storage
- Preserves document quality
- Fast compression
- Server-side processing

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Lifetime of Immediate Compressions | $9.99 | one-time |


## What do users think of Compress PDF?

Overall sentiment: negative

**Pros**

- ✅ Effective file compression capability
- 💰 Free option available for users
- 👍 Simple and easy to use interface
- 🎯 Achieves significant file size reduction
- ⏱️ Free compression works reasonably fast (5-10 minutes typical)
- 📧 Solves email attachment size problems

**Cons**

- ⏳ Free version requires 60-90 minute wait times
- 💸 Requires paid upgrade ($4.99-$9.99) for reasonable speed
- 📉 Severe quality degradation after compression
- 🐛 Frequent app crashes and freezes
- 🔌 Unreliable file upload/processing
- ❌ Poor Google authentication support
- 🚫 Doesn't work with local files consistently
- ⚙️ No compression quality or DPI settings available
- 💳 Unclear subscription/payment cancellation process
- 📱 Compatibility issues with certain file types

**Commonly reported bugs**

- App crashes on launch or during compression
- Files disappear after compression without clear location
- Payment recognition requires multiple app refreshes
- Google sign-in authentication failures
- Local file compression doesn't work
- Google Drive integration errors
- Compressed files become unreadable/blurry
- App hangs indefinitely during processing
- No status updates during compression

**Most requested features**

- Adjustable compression quality settings
- DPI/quality slider for user control
- Local processing option (no server upload)
- Faster free tier processing
- Clear subscription management and cancellation options
- Photo file compression support
- Status indicators for ongoing compression
- Better Google Drive integration

## Recent user reviews (10 of 51)

All indexed reviews: https://appshunter.io/ios/app/compress-pdf-make-pdf-smaller/id1172431294/reviews.md

### 1/5 — Waited for 1hr 45 min…nothing

*2023-12-02*

This app is a waste of time.  It said it would take 60-90 min to compress my file (! Unless I paid for the paid version) So I waited over 1hr 45 min before giving up and using a different app.

### 1/5 — Useless app

*2022-06-09, version 3.1*

Please watch out. This appears is be fake. I uploaded one document and after hours nothing happened, it does not show any status. I don’t know if it’s is even doing something or just keeping my document.

### 1/5 — Doesn't work

*2021-11-19, version 3.1*

Tried to use it, but it doesn't work and google apparently isn't supported

### 5/5 — Works as advertised. No issues.

*2021-08-16, version 3.1*

Simple and easy to use. No problems.

### 5/5 — Helpful

*2021-04-28, version 3.1*

Did a good job compressing. Free option does take an hour but it warns you regarding the time it will take and does give you upgrade option to compress within minutes.

### 1/5 — Google cannot sign you in

*2021-02-26, version 3.1*

I don’t know what that means either, except the app won’t work.

### 1/5 — Rubbing

*2020-10-20, version 3.1*

Doesn’t work
When you copy file to ap from
Phone

### 1/5 — That’s Funny...

*2020-09-07, version 3.1*

I thot this app just didn’t flat out work, till I read a review about down load time, funny.  The developer should have clarified this.  4.99 might be reasonable, but this turn off sent me to PDF compress that has ads, but compresses on the spot.  Delete.

### 1/5 — Waste of time!

*2020-08-11, version 3.1*

This app is trash i waited more than 60 minutes for my file to compress and nothing happened after waiting for over an hour for zero results. I do not recommend

### 5/5 — Worked for me

*2020-05-03, version 3.1*

I was able to compress 4.7MB PDF to 431KB and uploaded to the website. It was time consuming and took 60-90 minutes, but it worth it.

## Frequently asked questions about Compress PDF

### What does this app do?

This app allows you to reduce the file size of your PDF documents directly on your iPhone or iPad. It's designed to make your PDFs smaller for easier sharing and storage without compromising quality.

### How does the compression work?

You select a PDF document from your device or cloud storage services like Google Drive or Dropbox. The compression is performed on powerful servers, ensuring your device's battery and resources are not drained. The quality of your document is preserved during the process.

### Is this app free to use?

Based on the provided information, the app is available for free. There are no mentions of subscription fees or paid features.

### What devices is this app compatible with?

The app is designed for use on iPhones and iPads, indicating compatibility with Apple's iOS operating system.

### Can I compress PDFs from cloud storage?

Yes, you can easily select PDF documents from various cloud storage services, including Gmail, Google Drive, Dropbox, Box, and OneDrive, to compress them.

## Version history (last 1 release)

### 3.1 — 2016-11-15

This app has been updated by Apple to display the Apple Watch app icon.

## Apps similar to Compress PDF

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Compress PDF : Reduce PDF Size](https://appshunter.io/ios/app/compress-pdf-reduce-pdf-size/id1547749648) | 1.0 (3) | Free | Productivity |
| [Smallpdf: Scanner & PDF Editor](https://appshunter.io/ios/app/smallpdf-scanner-and-pdf-editor/id1485259500) | 4.8 (6,789) | Free | Productivity |
| [PDF Merge + Scan & Split Pages](https://appshunter.io/ios/app/pdf-merge-plus-scan-and-split-pages/id1482731740) | 4.3 (95) | Free | Productivity |
| [Agtrinsic](https://appshunter.io/ios/app/agtrinsic/id1664681960) | — | Free | Productivity |
| [SwiftScan:PDF Scan APP](https://appshunter.io/ios/app/swiftscanpdf-scan-app/id1669681920) | — | Free | Productivity |
| [Apowersoft PDF Converter](https://appshunter.io/ios/app/apowersoft-pdf-converter/id1454334140) | 2.3 (7) | Free | Productivity |

## More apps by Cometdocs.com Inc.

- [PDF to Word - PDF Converter](https://appshunter.io/ios/app/pdf-to-word-pdf-converter/id904634159)
- [PDF to Excel Converter - OCR](https://appshunter.io/ios/app/pdf-to-excel-converter-ocr/id908657724)
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- [PDF to Text Converter with OCR](https://appshunter.io/ios/app/pdf-to-text-converter-with-ocr/id908988376)
- [PDF to AutoCAD Converter - Convert PDF to DWG](https://appshunter.io/ios/app/pdf-to-autocad-converter-convert-pdf-to-dwg/id909289034)
- [Scanned PDF to Word](https://appshunter.io/ios/app/scanned-pdf-to-word/id909319700)

All apps by Cometdocs.com Inc.: https://appshunter.io/developer/704355169

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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 2026-06-10.*