Best Compress PDF Reduce PDF Size Free Apps

250+ iOS apps curated and reviewed

4.6 avg rating
20 free apps
Updated September 2026

Out of 250+ compress pdf reduce pdf size free apps on iOS, 20 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.

Compare top Compress PDF Reduce PDF Size Free Apps (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1PDF Compressor : Compress PDFPDF Compressor : Compress PDFFree4.6★ (813)YesNoSep 2026
2Compress It! PDF CompressorCompress It! PDF CompressorFree4.9★ (430)NoYesSep 2026
3Compress PDF reduce pdf sizeCompress PDF reduce pdf sizeFree4.5★ (25)NoYesSep 2026
4PDF Compressor - Reduce SizePDF Compressor - Reduce SizeFree4.3★ (82)NoYesSep 2026
5Compress PDF - Resize PDFCompress PDF - Resize PDFFree4.7★ (14)NoYesSep 2026
6compress pdf, reduce pdf sizecompress pdf, reduce pdf sizeFreeNoNoAug 2026
7Compress Pdf : Reduce PdfCompress Pdf : Reduce PdfFreeNoNoSep 2026
8pdf compressor.pdf compressor.Free4.3★ (30)NoNoSep 2026

Top Picks for Compress PDF Reduce PDF Size Free

PDF Compressor : Compress PDF#1

PDF Compressor : Compress PDF by Vishalbhai Vaghasiya

Compress PDF - PDF Compressor
Editor's Choice
🔧 Utilities
4.6😞(813 ratings)
FreeAds
PDF Compressor : Compress PDF screenshot 1
PDF Compressor : Compress PDF screenshot 2
PDF Compressor : Compress PDF screenshot 3

Reduce the size of your PDF documents with this easy-to-use tool. Select your file, choose the desired output quality, and compress your PDFs with a single tap. Save disk space and speed up uploads and downloads.

What We Love

  • 🚀 Fast and efficient compression
  • 👍 Simple and easy-to-use interface
  • 💰 Free to download and use
  • ✅ Effective file size reduction
  • 📧 Solves email attachment size issues

Room to Improve

  • 📢 Excessive and intrusive advertisements
  • 🐛 Frequent app crashes and glitches
  • ❌ File compression increases size instead of reducing it
  • 🔄 App requires restart after each compression
  • ⚠️ Suspicious ad permissions and potential security concerns
  • 📄 Corrupts document content and page formatting
  • 🔐 Possible malware or data theft risk
  • 🖥️ Web-based functionality with poor connectivity handling
Compress It! PDF Compressor#2

Compress It! PDF Compressor by DIGISET LLC

Reduce & shrink document size
Strong Contender
🔧 Utilities
4.9😐(430 ratings)
FreeIn-App Purchases
Compress It! PDF Compressor screenshot 1
Compress It! PDF Compressor screenshot 2
Compress It! PDF Compressor screenshot 3

Easily reduce the file size of your PDF documents with a simple, secure, and privacy-focused tool. Compress PDFs in just three steps, directly on your device, and share them instantly. Enjoy fast and efficient document management without complex features.

What We Love

  • 👍 Easy to use
  • ✨ No ads
  • 🚀 Works really good
  • 💯 Gets the job done
  • 💰 Saves time and money
  • ✅ Reduces PDF size significantly
  • 🆓 Free to use
  • 💡 Helpful for sending large files
  • 🚀 Fast compression
  • 🌟 Best PDF compressor

Room to Improve

  • 🐛 Crashes with files over 200mb
  • 🐛 Does not work with files over 300mb
  • 🐛 Images become pixelated
  • 🐛 Decompressing to original size unknown
  • 🐛 'Choose file' button not working
  • 🐛 Cannot find compressed files
  • 🐛 No option to compress photos
  • 🐛 Does not work at all
  • 🐛 Fake app, not working
  • 🐛 Horrible, no funciona

More Compress PDF Reduce PDF Size Free apps to explore

FAQ about Compress PDF Reduce PDF Size Free

What are the best compress pdf reduce pdf size free apps for iPhone?
PDF Compressor : Compress PDF tops our compress pdf reduce pdf size free apps ranking as of September 2026, with a 4.6-star average from 813 App Store ratings, and it's free to download.
PDF Compressor : Compress PDF shows ads and has no in-app purchases, according to its App Store listing as of September 2026.
We track 250+ compress pdf reduce pdf size free apps on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.
This app is designed to reduce the file size of your PDF documents. It allows you to compress PDFs, which saves disk space and makes uploads and downloads faster. You can select the quality of the output PDF to control the level of compression.
Compressing a PDF is simple. You select the PDF file you want to compress directly on your device. Then, you choose the desired quality for the output PDF, and with a single tap, the app will reduce the file size.