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Best Compress PDF Free Apps

249+ iOS apps curated and reviewed

4.2 avg rating
20 free apps
Updated August 2026

Whether you're new to compress pdf free or looking for an upgrade, our curated collection of 249+ iOS apps has something for everyone. Each app is reviewed and rated by real users, helping you make an informed decision.

Compare top Compress PDF Free Apps (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1PDF Compressor : Compress PDFPDF Compressor : Compress PDFFree4.7★ (650)YesNoAug 2026
2PDF Compressor - Reduce SizePDF Compressor - Reduce SizeFree4.3★ (82)NoYesAug 2026
3Acrobat Reader: PDF EditorAcrobat Reader: PDF EditorFree4.7★ (644K)NoYesAug 2026
4Compress It! PDF CompressorCompress It! PDF CompressorFree4.9★ (430)NoYesAug 2026
5pdf compressor & compress pdfpdf compressor & compress pdfFree4.6★ (155)YesYesAug 2026
6PDF Compressor - Compress PDFPDF Compressor - Compress PDFFree4.3★ (523)NoYesJul 2026
7Compress PDF File - ShrinkrCompress PDF File - ShrinkrFree—NoYesAug 2026
8PDF Compressor－Compress PDFPDF Compressor－Compress PDFFree4.7★ (137)YesYesAug 2026

Top Picks for Compress PDF 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
PDF Compressor - Reduce Size#2

PDF Compressor - Reduce Size by NextPixel apps

compress & make PDF smaller
Strong Contender
🔧 Utilities
4.3(82 ratings)
FreeIn-App Purchases
PDF Compressor - Reduce Size screenshot 1
PDF Compressor - Reduce Size screenshot 2
PDF Compressor - Reduce Size screenshot 3
PDF Compressor - Reduce Size screenshot 4

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.

Acrobat Reader: PDF Editor#3

Acrobat Reader: PDF Editor by Adobe Inc.

Documents Editor & Converter
Worth Considering
💼 Business
4.7😞(644K ratings)
FreeIn-App Purchases
#2in Business
Acrobat Reader: PDF Editor screenshot 1
Acrobat Reader: PDF Editor screenshot 2
Acrobat Reader: PDF Editor screenshot 3
Acrobat Reader: PDF Editor screenshot 4
Acrobat Reader: PDF Editor screenshot 5
Acrobat Reader: PDF Editor screenshot 6

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.

What We Love

  • 🚀 Fast and efficient
  • 🔒 Secure document storage
  • 👍 Convenient for reading and annotating PDFs
  • 👍 Useful for students and professionals

Room to Improve

  • 🐛 Buggy and unreliable
  • 🔒 Overly intrusive login requirements
  • 💰 Expensive subscription model

More Compress PDF Free apps to explore

4
Compress It! PDF Compressor
Compress It! PDF Compressor
Compress It! PDF Compressor
Reduce & shrink document size
Free

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.

PDF compression in 3 easy stepsSelectable compression levelsImport PDFs from files or other apps
🔧 Utilities
(430)
freemium
5
pdf compressor & compress pdf
pdf compressor & compress pdf
pdf compressor & compress pdf
Offline compress PDF documents
Free

Shrink PDF files quickly and easily without an internet connection. Free up storage space on your device and share documents more efficiently. Offers various compression levels and additional PDF management tools.

Offline PDF compressionAdjustable compression qualityBulk PDF compression
💼 Business
(155)
free with in-app purchases
6
PDF Compressor - Compress PDF
PDF Compressor - Compress PDF
PDF Compressor - Compress PDF
Compress PDF - PDF Compressor
Free

Reduce the size of your PDF files to save storage space and speed up uploads and downloads. This app allows you to compress PDFs with a single tap, making them easier to manage and share.

Compress PDF file size easilyReduce PDF size within secondsSmart and easy to use interface
🔧 Utilities
(523)
free with in-app purchases
7
Compress PDF File - Shrinkr
Compress PDF File - Shrinkr
Compress PDF File - Shrinkr
#1 PDF Compressor, Reduce Size
Free
🔧 Utilities
(0)
8
PDF Compressor－Compress PDF
PDF Compressor－Compress PDF
PDF Compressor－Compress PDF
Reduce PDF Size & Keep Quality
Free

Easily reduce the size of your PDF files without sacrificing quality. This tool helps you shrink PDFs for faster sharing, emailing, or uploading, saving valuable storage space. It's perfect for managing large documents and scanned files efficiently.

Compress PDF files without losing claritySmart compressor for scanned or large documentsReduce PDF size for easy upload and sharing
📊 Productivity
(137)
free with in-app purchases
9
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
10
Compress PDF 1MB,500KB,200KB
Compress PDF 1MB,500KB,200KB
Compress PDF 1MB,500KB,200KB
Resize+JPG 100KB,300KB,2MB,5MB
Free
🔧 Utilities
(0)
11
Genius Scan - PDF Scan
Genius Scan - PDF Scan
Genius Scan - PDF Scan
PDF Scanner & OCR
Free

Transform your device into a powerful PDF scanner and document manager. Capture, create, edit, convert, organize, and protect PDF files with an intuitive all-in-one solution for work, school, and everyday life.

Scan documents with cameraCreate high-quality PDFsImport photos and files
🔧 Utilities
(2)
free with in-app purchases
12
Pdf Compressor - Compress File
Pdf Compressor - Compress File
Pdf Compressor - Compress File
Reduce PDF Size & Keep Quality
Free

This app helps you reduce the size of PDF files quickly and easily without sacrificing quality. It's perfect for optimizing documents for sharing, email, or storage, offering a simple interface for efficient compression.

Compress PDF files easilyHigh-quality compressionFast processing
📊 Productivity
(4)
free with in-app purchases
13
Compress PDF reduce pdf size
Compress PDF reduce pdf size
Compress PDF reduce pdf size
PDF Compressor, Small pdf size
Free

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.

Compress PDFs up to 95%Multiple compression levelsFast and easy to use
📊 Productivity
(25)
free with in-app purchases
14
PDF Shrink: Offline Compress
PDF Shrink: Offline Compress
PDF Shrink: Offline Compress
Offline PDF compression
Free
🔧 Utilities
(0)
15
PDF Expert: Editor & Converter
PDF Expert: Editor & Converter
PDF Expert: Editor & Converter
Edit, Read, Scan・Sign Document
Free

This app allows you to edit, annotate, fill out forms, and convert PDF documents. It offers AI-powered summarization and analysis, along with tools to merge, sign, and protect your files. Work seamlessly across Apple devices with a user-friendly interface.

Edit PDF text and imagesAnnotate and highlight PDFsFill out PDF forms
📊 Productivity
(216K)
free with in-app purchases
16
PDF Compressor: Compress PDF .
PDF Compressor: Compress PDF .
PDF Compressor: Compress PDF .
Compress PDF - PDF Compressor
Free
📊 Productivity
(0)
17
PDF Compressor Offline
PDF Compressor Offline
PDF Compressor Offline
Compress PDF Files Offline
Free
📊 Productivity
(0)
18
ShrinkPDF Go: Compress & Merge
ShrinkPDF Go: Compress & Merge
ShrinkPDF Go: Compress & Merge
Compress and Merge PDFs
Free
🔧 Utilities
(0)
19
PDF Compressor: Easy Compress
PDF Compressor: Easy Compress
PDF Compressor: Easy Compress
COMPRESS PDF Docs
Free

Reduce PDF file sizes quickly and privately on your device. Offers multiple compression levels and batch processing for efficient storage management and easy sharing. Works entirely offline without internet connection.

Offline PDF compressionMultiple compression levelsBatch processing
🔧 Utilities
(1)
free
20
PDF Compress Under 500KB
PDF Compress Under 500KB
PDF Compress Under 500KB
PDF Compress Under 500KB
Free
📊 Productivity
(0)

FAQ about Compress PDF Free

What are the best compress pdf free apps for iPhone?
PDF Compressor : Compress PDF tops our compress pdf 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 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.