Best Reduce PDF Size Apps

250+ iOS apps curated and reviewed

4.2 avg rating
20 free apps
Updated October 2026

Compress PDF is the household name in reduce pdf size, but it's far from the only option. We track 250+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.

Compare top Reduce PDF Size Apps (October 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Compress PDF : PDF Size ReduceCompress PDF : PDF Size ReduceFree5.0★ (1)YesNoOct 2026
2Compress PDF - Resize PDFCompress PDF - Resize PDFFree4.7★ (15)NoYesOct 2026
3PDF Compressor : Compress PDFPDF Compressor : Compress PDFFree4.6★ (862)YesNoOct 2026
4PDF Slim - Reduce PDF SizePDF Slim - Reduce PDF SizeFree5.0★ (1)YesYesOct 2026
5PDF Compressor: Size ReducePDF Compressor: Size ReduceFree4.2★ (58)YesYesOct 2026
6PDF Compressor - Reduce SizePDF Compressor - Reduce SizeFree4.3★ (83)NoYesOct 2026
7Compress PDF : Reduce PDF SizeCompress PDF : Reduce PDF SizeFree1.0★ (3)NoYesMay 2026
8PDF Compress - Reduce PDF SizePDF Compress - Reduce PDF SizeFree3.0★ (2)NoNoOct 2026

Top Picks for Reduce PDF Size

Compress PDF : PDF Size Reduce#1

Compress PDF : PDF Size Reduce by Pratik Kadam

PDF Compressor - Shrink PDF
Editor's Choice
🔧 Utilities
5.0(1 ratings)
FreeAds
Compress PDF : PDF Size Reduce screenshot 1
Compress PDF : PDF Size Reduce screenshot 2
Compress PDF : PDF Size Reduce screenshot 3
Compress PDF : PDF Size Reduce screenshot 4
Compress PDF : PDF Size Reduce screenshot 5
Compress PDF : PDF Size Reduce screenshot 6

This app offers a suite of tools to manage PDF files, including compression to reduce size, merging multiple documents, splitting large files, and extracting text from images. It prioritizes user privacy by processing all files locally on your device.

Compress PDF - Resize PDF#2

Compress PDF - Resize PDF by PremiumAl Limited

Compress, Resize & Create PDF
Strong Contender
🔧 Utilities
4.7(15 ratings)
FreeIn-App Purchases
Compress PDF - Resize PDF screenshot 1
Compress PDF - Resize PDF screenshot 2
Compress PDF - Resize PDF screenshot 3

Easily reduce the size of PDF files for efficient storage and sharing. Offers adjustable quality levels and on-device processing for privacy. An optional Pro upgrade provides unlimited compressions, target file size control, and an ad-free experience.

PDF Compressor : Compress PDF#3

PDF Compressor : Compress PDF by Vishalbhai Vaghasiya

Compress PDF - PDF Compressor
Worth Considering
🔧 Utilities
4.6😞(862 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

More Reduce PDF Size apps to explore

FAQ about Reduce PDF Size

What are the best reduce pdf size apps for iPhone?
Compress PDF : PDF Size Reduce tops our reduce pdf size apps ranking as of October 2026, with a 5.0-star average from 1 App Store ratings, and it's free to download.
Yes — 20 of the top reduce pdf size apps we rank are free to download, including Compress PDF : PDF Size Reduce and Compress PDF - Resize PDF.
Compress PDF : PDF Size Reduce shows ads and has no in-app purchases, according to its App Store listing as of October 2026.
We track 250+ reduce pdf size apps on the iOS App Store as of October 2026, ranked by rating, recency, and analysis of real user reviews.

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