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Best PDF Compression Apps

250+ iOS apps curated and reviewed

4.8 avg rating
20 free apps
Updated July 2026

From beginner-friendly picks to power-user tools, our pdf compression list covers 250+ iPhone apps updated through July 2026. Compare ratings, prices, and screenshots in one place.

Compare top PDF Compression Apps (July 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1PDF Compressor : Compress PDFPDF Compressor : Compress PDFFree4.7★ (650)YesNoAug 2026
2PDF it All Document ConverterPDF it All Document ConverterFree4.8★ (8K)NoYesAug 2026
3PDF CompressionPDF CompressionFree5.0★ (5)YesYesMay 2026
4iLovePDF - PDF Editor & ScaniLovePDF - PDF Editor & ScanFree4.8★ (51K)NoYesAug 2026
5Acrobat Reader: PDF EditorAcrobat Reader: PDF EditorFree4.7★ (643K)NoYesAug 2026
6Smallpdf: Scanner & PDF EditorSmallpdf: Scanner & PDF EditorFree4.8★ (6.8K)NoYesAug 2026
7PDFPress - PDF CompressorPDFPress - PDF CompressorFree—NoYesJul 2026
8Compress PDF: Smaller FilesCompress PDF: Smaller FilesFree—NoYesAug 2026

Top Picks for PDF Compression

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 it All Document Converter#2

PDF it All Document Converter by DIGISET LLC

Compress PDF Photos,Files,Word
Strong Contender
📊 Productivity
4.8😊(8K ratings)
FreeIn-App Purchases
PDF it All Document Converter screenshot 1
PDF it All Document Converter screenshot 2
PDF it All Document Converter screenshot 3
PDF it All Document Converter screenshot 4
PDF it All Document Converter screenshot 5
PDF it All Document Converter screenshot 6

This app offers a comprehensive suite of tools for managing PDF documents. It allows users to compress, convert, edit, merge, split, sign, and protect PDF files. All operations are performed locally on the device for enhanced security.

What We Love

  • 🚀 Fast and efficient
  • 👍 User-friendly and easy to use
  • 💡 Versatile and feature-rich
  • 🥰 Loyal and reliable companion

Room to Improve

  • 🐛 Crashes and compatibility issues with newer iOS versions
  • 💰 Subscription model not well-received
  • 🔍 Lack of search functionality
PDF Compression#3

PDF Compression by Antonio Gonzalez de la aleja german

Compress PDF files quickly
Worth Considering
📊 Productivity
5.0(5 ratings)
FreeAdsIn-App Purchases
PDF Compression screenshot 1
PDF Compression screenshot 2
PDF Compression screenshot 3
PDF Compression screenshot 4
PDF Compression screenshot 5

Easily reduce the size of your PDF files without sacrificing quality. This tool is perfect for students and professionals needing to optimize documents for storage, email, or sharing. Compress multiple files quickly and efficiently.

More PDF Compression apps to explore

4
iLovePDF - PDF Editor & Scan
iLovePDF - PDF Editor & Scan
iLovePDF - PDF Editor & Scan
For Work, Study & E-Signing
Free

Edit, convert, annotate, and sign PDF documents on the go. This app offers tools to scan, merge, split, compress, and protect your files, enhancing productivity for work and study.

Scan documents to PDFConvert JPG/Office to PDFEdit and annotate PDFs
📊 Productivity
(51K)
freemium
5
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
(643K)
freemium
6
Smallpdf: Scanner & PDF Editor
Smallpdf: Scanner & PDF Editor
Smallpdf: Scanner & PDF Editor
compress, convert, ocr, sign
Free

This app offers a comprehensive suite of tools to manage PDF documents. Easily convert, edit, compress, sign, merge, and scan PDFs using your mobile device. It also features OCR technology to convert scanned documents into editable text.

Convert PDFs to Word, Excel, PPT, JPG, PNGEdit PDFs with text, images, and annotationsCompress PDFs to reduce file size
📊 Productivity
(6.8K)
free with in-app purchases
7
PDFPress - PDF Compressor
PDFPress - PDF Compressor
PDFPress - PDF Compressor
Shrink PDF size for upload
Free
🔧 Utilities
(0)
8
Compress PDF: Smaller Files
Compress PDF: Smaller Files
Compress PDF: Smaller Files
Shrink to email · No Ads
Free
📊 Productivity
(0)
9
PDF Shrink: Offline Compress
PDF Shrink: Offline Compress
PDF Shrink: Offline Compress
Offline PDF compression
Free
🔧 Utilities
(0)
10
PDF Splitter & Compressor
PDF Splitter & Compressor
PDF Splitter & Compressor
Rearrange Pages, Add Privacy
Free
🔧 Utilities
(0)
11
PDF Compressor: Compress PDF .
PDF Compressor: Compress PDF .
PDF Compressor: Compress PDF .
Compress PDF - PDF Compressor
Free
📊 Productivity
(0)
12
PDF Squeezer
PDF Squeezer
PDF Squeezer
Compress PDFs Offline
Free

Reduce PDF file sizes on your iPhone or iPad with customizable compression settings. Preview changes before saving and process files securely offline. Automate tasks with iOS Shortcuts integration and compress multiple files at once.

Customizable compression settingsPreview compressed PDFsOffline, on-device processing
📊 Productivity
(22)
free with in-app purchases
13
PDFCompressor.Shrink PDF
PDFCompressor.Shrink PDF
PDFCompressor.Shrink PDF
Reduce Size. Keep Quality.
Free
📊 Productivity
(0)
14
CompressPDF -iReadPDF
CompressPDF -iReadPDF
CompressPDF -iReadPDF
Shrink PDF file size
Free
📊 Productivity
(0)
15
PDF Compressor | Reduce Size
PDF Compressor | Reduce Size
PDF Compressor | Reduce Size
Compress PDF & Reduce PDF Size
Free
🔧 Utilities
(0)
16
Compress PDF File - Shrinkr
Compress PDF File - Shrinkr
Compress PDF File - Shrinkr
#1 PDF Compressor, Reduce Size
Free
🔧 Utilities
(0)
17
Smart PDF Compressor Offline
Smart PDF Compressor Offline
Smart PDF Compressor Offline
Shrink PDFs. Stay Private.
Free
📊 Productivity
(0)
18
PDF Compressor Offline
PDF Compressor Offline
PDF Compressor Offline
Compress PDF Files Offline
Free
📊 Productivity
(0)
19
PDF Compressor: Fast Resize
PDF Compressor: Fast Resize
PDF Compressor: Fast Resize
Edit and convert documents
Free
📊 Productivity
(0)
20
Compress PDF: PDF Compressor
Compress PDF: PDF Compressor
Compress PDF: PDF Compressor
Reduce PDF Size & Edit
Free
🔧 Utilities
(0)

FAQ about PDF Compression

What are the best pdf compression apps for iPhone?
PDF Compressor : Compress PDF tops our pdf compression apps ranking as of July 2026, with a 4.7-star average from 650 App Store ratings, and it's free to download.
Yes — 20 of the top pdf compression apps we rank are free to download, including PDF Compressor : Compress PDF and PDF it All Document Converter.
PDF Compressor : Compress PDF shows ads and has no in-app purchases, according to its App Store listing as of July 2026.
We track 250+ pdf compression apps on the iOS App Store as of July 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.