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Best Compress PDF Reduce PDF Size Free Apps

249+ iOS apps curated and reviewed

4.2 avg rating
20 free apps
Updated August 2026

Out of 249+ 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 (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1PDF Compressor : Compress PDFPDF Compressor : Compress PDFFree4.7★ (650)YesNoAug 2026
2Compress It! PDF CompressorCompress It! PDF CompressorFree4.9★ (430)NoYesAug 2026
3Compress PDF reduce pdf sizeCompress PDF reduce pdf sizeFree4.5★ (25)NoYesAug 2026
4PDF Compressor - Reduce SizePDF Compressor - Reduce SizeFree4.3★ (82)NoYesAug 2026
5Compress PDF - Resize PDFCompress PDF - Resize PDFFree5.0★ (13)NoYesJul 2026
6Acrobat Reader: PDF EditorAcrobat Reader: PDF EditorFree4.7★ (644K)NoYesAug 2026
7Compress PDF File - ShrinkrCompress PDF File - ShrinkrFree—NoYesAug 2026
8Compress PDF : Reduce PDF SizeCompress PDF : Reduce PDF SizeFree1.0★ (3)NoYesMay 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
4.7😞(650 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

Room to Improve

  • 📢 Excessive and intrusive advertisements
  • 🐛 Frequent app crashes and glitches
  • ❌ File compression increases size instead of reducing it
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

Room to Improve

  • 🐛 Crashes with files over 200mb
  • 🐛 Does not work with files over 300mb
  • 🐛 Images become pixelated
Compress PDF reduce pdf size#3

Compress PDF reduce pdf size by Nouhayla Moustaine

PDF Compressor, Small pdf size
Worth Considering
📊 Productivity
4.5(25 ratings)
FreeIn-App Purchases
Compress PDF reduce pdf size screenshot 1
Compress PDF reduce pdf size screenshot 2
Compress PDF reduce pdf size screenshot 3
Compress PDF reduce pdf size screenshot 4
Compress PDF reduce pdf size screenshot 5
Compress PDF reduce pdf size screenshot 6

Easily reduce the size of your PDF files by up to 95% with multiple compression levels. Share your smaller PDF documents quickly and efficiently. Offers a clean and user-friendly interface for fast processing.

More Compress PDF Reduce PDF Size Free apps to explore

4
PDF Compressor - Reduce Size
PDF Compressor - Reduce Size
PDF Compressor - Reduce Size
compress & make PDF smaller
Free

Reduce the size of your PDF documents without sacrificing quality. Optimize PDFs for storage, sharing, and faster loading. Effortlessly manage and share your compressed files anywhere.

Efficient PDF compressionRetain document qualityUser-friendly file management
🔧 Utilities
(82)
free with in-app purchases
5
Compress PDF - Resize PDF
Compress PDF - Resize PDF
Compress PDF - Resize PDF
Compress, Resize & Create PDF
Free

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.

Compress PDFs by adjustable qualityReduce PDF file size quicklyPreview original vs. compressed size
🔧 Utilities
(13)
free with in-app purchases
6
Acrobat Reader: PDF Editor
Acrobat Reader: PDF Editor
Acrobat Reader: PDF Editor
Documents Editor & Converter
Free

This app is a powerful PDF tool for viewing, editing, annotating, and signing documents. It offers AI-powered features for summarizing and interacting with PDFs, along with robust conversion and security options. Collaborate on files and access your documents from anywhere.

View, edit, and annotate PDFsSign and fill PDF formsConvert files to and from PDF
💼 Business
(644K)
freemium
7
Compress PDF File - Shrinkr
Compress PDF File - Shrinkr
Compress PDF File - Shrinkr
#1 PDF Compressor, Reduce Size
Free
🔧 Utilities
(0)
8
Compress PDF : Reduce PDF Size
Compress PDF : Reduce PDF Size
Compress PDF : Reduce PDF Size
PDF Compressor :Smart Compress
Free

Reduce the file size of your PDF documents, especially those with many images. This app offers compression options to shrink PDFs without compromising quality, saving storage space and transmission time. It's a lightweight tool for optimizing memory usage.

Full size compressionUltra fast processingLow battery usage
📊 Productivity
(3)
freemium
9
PDF Shrink: Offline Compress
PDF Shrink: Offline Compress
PDF Shrink: Offline Compress
Offline PDF compression
Free
🔧 Utilities
(0)
10
Compress Pdf : Reduce Pdf
Compress Pdf : Reduce Pdf
Compress Pdf : Reduce Pdf
PDF Compressor - PDF Converter
Free
🔧 Utilities
(0)
11
PDF Compressor: Compress PDF .
PDF Compressor: Compress PDF .
PDF Compressor: Compress PDF .
Compress PDF - PDF Compressor
Free
📊 Productivity
(0)
12
Compress PDF : PDF Size Reduce
Compress PDF : PDF Size Reduce
Compress PDF : PDF Size Reduce
PDF Compressor - Shrink PDF
Free
🔧 Utilities
(0)
13
PDF Compressor: To Any Size
PDF Compressor: To Any Size
PDF Compressor: To Any Size
Merge, split & compress PDF
Free
🔧 Utilities
(0)
14
Smart PDF Compressor
Smart PDF Compressor
Smart PDF Compressor
Shrink PDFs, Keep Quality
Free
🔧 Utilities
(0)
15
PDF Compressor – Reduce Size
PDF Compressor – Reduce Size
PDF Compressor – Reduce Size
Compress PDF Files Easily
Free
📊 Productivity
(0)
16
PDF Compressor Offline
PDF Compressor Offline
PDF Compressor Offline
Compress PDF Files Offline
Free
📊 Productivity
(0)
17
Compress PDF: Reduce Size
Compress PDF: Reduce Size
Compress PDF: Reduce Size
#1 PDF Compress & Convert App
Free
🔧 Utilities
(0)
18
compress pdf, reduce pdf size
compress pdf, reduce pdf size
compress pdf, reduce pdf size
Offline PDF Converter Tool 50+
Free
🔧 Utilities
(0)
19
Smart PDF Compressor Offline
Smart PDF Compressor Offline
Smart PDF Compressor Offline
Shrink PDFs. Stay Private.
Free
📊 Productivity
(0)
20
ShrinkPDF Go: Compress & Merge
ShrinkPDF Go: Compress & Merge
ShrinkPDF Go: Compress & Merge
Compress and Merge PDFs
Free
🔧 Utilities
(0)

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 August 2026, with a 4.7-star average from 650 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 August 2026.
We track 249+ compress pdf reduce pdf size free apps on the iOS App Store as of August 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.