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PDFOptim

PDFOptim

Compress & Optimize PDF files

285 ratings
54 reviews
💼 Business
📊 Productivity
Free
In-App Purchases

Details

  • Released
  • Updated
  • August 18, 2014
  • January 19, 2026

Developer

RootRise Technologies Pvt. Ltd.
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PDFOptim screenshot #1 for iPhone
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PDFOptim screenshot #9 for iPhone
iphone
ipad
🧾$0.99 - $4.99
In-App Purchase↘︎
📌Ready
Reviews summary↘︎
⭐54
Reviews↘︎
🔄6+ apps
Alternatives↘︎
❓5 answered
FAQ↘︎
📦~ in 5 months
Updates frequency↘︎
🖼️Get Icon
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About

Easily compress and optimize PDF files on your iPhone and iPad. Reduce the size of large documents, saving storage space and transmission time. Offers both automatic and manual compression modes with advanced settings for image and vector graphics.

✓Compress PDF documents
✓Optimize PDF files
✓Automatic compression mode
✓Manual compression mode
✓Adjust image resolution and quality
✓Optimize vector graphics
✓Support for password-protected PDFs
Show original description

What users say

Summarized from real user reviews of PDFOptim. Based on 285 reviews and a 4.7/5 average, it highlights the 12 positives and 10 negatives reviewers mention most about this Productivity app.

Positive things

  • 👍Excellent compression quality
  • 🚀Efficient and fast performance
  • 👍Simple and easy to use
  • 💰Good value for money (one-time purchase)
  • 👍No annoying subscriptions
  • 👍Preserves good quality
  • 👍Useful for emailing large files
  • 👍Side-by-side comparison feature
  • 👍Works well on iPad
  • 👍Affordable one-time purchase
  • 👍Integrates with other apps
  • 👍No BS fees

Negative things

  • 🐛App not launching/freezing
  • 🐛Doesn't work for certain file types (e.g., GoodNotes)
  • 🐛Poor image quality/pixelation
  • 🐛Compression not effective on all PDFs
  • 🐛Confusing or illogical interface
  • 🐛Issues with making purchases
  • 🐛Needs updating for latest OS versions
  • 🐛Can be pricey for single-purpose utility
  • 🐛Does not support iOS shortcuts
  • 🐛Requires separate purchase for macOS
See all reviews

What's New in PDFOptim

6.0

January 19, 2026

- Updated user interface to streamline with latest iOS. - Other minor bug fixes and improvements. If PDFOptim useful to you, we would appreciate an App Store review. It will help other people find the app and make them delighted. Thank you all users for your feedback :)

More

Subscription plans

Premium : Yearly Access

Get access to full app features for a year.

$2.991 Year
3 Days trial
How to cancel PDFOptim subscription ⁉️
3

In-App Purchases

$4.99

Premium : Lifetime Access

Get access to full app features for lifetime.

User reviews

Most RecentHighest RatedLowest Rated

The best app for shinking size

Works perfectky. No BS fees.
mikey_bbmikey_bb

A great and very useful app

Love it. Been using for years and it’s saved my skin a good few times to optimized large artwork PDFs for review to make them easy to email and still good quality. Good job!
mccallumartmccallumart

Perfect

Functions really well. Compresses better than any software I’ve used.
IP-DorcasIP-Dorcas

Nice and simple

This app has stood the test of time. It is easy to use, does what I want, and integrates with other apps I use.
ZXSciZXSci

Can't make the full time purchase!!!!

I'm honestly sooo sooo Anoyed! Despite the positive reviews of the app there's an issue on your side app won't take purchaces!
GeorgiJorjoffGeorgiJorjoff
See 49 more reviews

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User experience

🐞

Reported Bugs

11 issues

App not launching on iOS 18.0.1

Bug

App freezes during launch

Bug

App won't take purchases

Bug

Cannot optimize certain PDFs

Bug

Compression not effective on marked-up PDFs

Bug

App no longer works after updates

Bug

File compressed to a slightly smaller size with no significant reduction

Bug

Graphics become unreadable or highly degraded

Bug

App crashes

Bug

Multitasking, drag and drop not working

Bug

Doesn't use full screen on new iPads

Bug
✨

Requested Features

6 requests

Support for iOS shortcuts

Feature

macOS version integration/cross-platform compatibility

Feature

Improved handling of specific file types like GoodNotes

Feature

Better optimization for handwritten notes within PDFs

Feature

Cloud storage for compressed documents (iCloud)

Feature

Update for latest OS versions and multitasking features

Feature

FAQ

What does PDFOptim do?

PDFOptim is an application designed to compress, optimize, and reduce the file size of PDF documents on iPhones and iPads. It helps in saving storage space and speeding up file transfers by making PDFs smaller without compromising their integrity.

How does PDFOptim compress PDFs?

The app offers two main modes: Auto Compression, where it analyzes the document and applies an algorithm to find the smallest possible size while maintaining quality, and Manual Compression, where users can adjust specific settings like image color model, resolution, JPEG quality, and vector graphics optimization.

Is PDFOptim free to use?

The application is available for free with in-app purchases. This suggests that while basic functionality might be free, certain advanced features or unlimited usage may require a purchase.

What devices is PDFOptim compatible with?

PDFOptim is designed for iPhones and iPads. A separate version is also available for Mac computers on the Mac App Store.

Can I compress password-protected PDFs?

Yes, PDFOptim supports the compression of password-protected PDF documents, provided you have the correct password to access and process them.