Comparison

PDF Compressor vs Compress PDF

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

PDF Compressor

Features
Read full description

Compress PDF files quickly, reduce file size, and keep your documents private with PDF Compressor: Reduce PDF. Need to make a PDF smaller for email, work, school, online forms, or document uploads? PDF Compressor helps you reduce PDF file size directly on your iPhone or iPad — with no account required and no document uploads to our servers. SMART PDF COMPRESSION Reduce PDF size while preserving text, links, and document structure whenever possible. Smart Compression is ideal for documents where readability and selectable text matter. MULTIPLE COMPRESSION OPTIONS Choose the compression method that fits your needs: • Smart Compression — Reduce file size while preserving text and links • Maximum Compression — Get a smaller file using stronger compression • Target Size — Try to compress your PDF toward 500 KB, 1 MB, 2 MB, 5 MB, or a custom size • Multiple quality options for stronger compression BUILT FOR REAL-WORLD FILE SIZE LIMITS Trying to upload a PDF but the file is too large? Choose a target size and let PDF Compressor reduce the document as much as possible while protecting its structure. Some PDFs are already highly optimized, so the exact target size cannot always be reached. The app clearly tells you when further compression would reduce document quality or make the file larger. PRIVATE — YOUR PDFs STAY ON YOUR DEVICE Your PDF documents are processed locally on your device. • No PDF uploads to our servers • No account required • No sign-in required • Your original PDF is never overwritten • Save or share the compressed copy only when you choose PREVIEW BEFORE AND AFTER Preview your PDF before compression and check the compressed version when processing is complete. CLEAR COMPRESSION RESULTS See exactly what happened to your document: • Original file size • Compressed file size • Percentage of space saved • Compression method used • Whether text and links were preserved SAVE AND SHARE EASILY Save your compressed PDF to Files or share it directly using the standard iOS sharing options. PDF Compressor: Reduce PDF is designed to make reducing PDF file sizes simple, fast, and private. Choose a PDF, select your compression method, reduce its size, and save the result.

About

Compress PDF

Features
Read full description

Your PDF never leaves your device. No upload, no account, no waiting. Compress PDF makes PDF files smaller right on your phone. Pick a file, choose how much to shrink it, and save the result as a new file. Your original is never changed. TWO WAYS TO SHRINK Text-preserving compression re-compresses the images inside your PDF while keeping text selection, search, and links working. This is the default. Strong compression turns every page into an image. It shrinks much more, but text selection, search, and links are lost. The app always asks first, so it never happens by surprise. HIT AN EXACT SIZE Need a file under 5 MB for an email attachment? Enter the size and the app tries progressively lower quality until the result fits. It measures the real file size each time — not an estimate — and keeps the best result it found. HONEST RESULTS • Real byte sizes before and after, with the actual reduction • If a file cannot be made smaller, the app says so instead of pretending • Cancel any time — the app stops and cleans up • Password-protected PDFs are not supported, and the app tells you why OPEN FROM OTHER APPS Open or share a PDF from Files or your email app and it goes straight into the app. PRIVACY Your PDFs are processed on this device and are never sent anywhere. Usage statistics and error diagnostics help improve the app, and you can turn each one off separately in Settings at any time. Where the law requires consent, such as in the EU, the UK, and Switzerland, the app asks before sending anything. Available in 19 languages.

Screenshots

PDF Compressor2 screens
Compress PDF4 screens

Verdict

The call

The clearest difference is update cadence: Compress PDF at every 4 days against PDF Compressor's every 8 days. PDF Compressor's advantage is iOS requirement (15.0 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

PDF Compressor ships an update every 8 days, Compress PDF every 4 days. The most recent releases landed on October 17, 2026 and October 15, 2026 respectively.

Scorecard2 real differences Ā· 4 level
PDF Compressor versus Compress PDF: the parameters behind the verdict, then further details
ParameterPDF CompressorCompress PDF
PriceFreeFree
Update frequencyEvery 8 daysEvery 4 days — better
AdsYesYes
In-app purchasesNoNo
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.0 — better18.0
Further details — not scored
Size5 MB14 MB
Age rating4+4+
DeveloperTAREQ ALHUSAINIBokeria

In-app purchases

None

PDF Compressor

No in-app purchases

None

Compress PDF

No in-app purchases

Questions

Is PDF Compressor free?
PDF Compressor is free to download, with no in-app purchases.
Is Compress PDF free?
Compress PDF is free to download, with no in-app purchases.
Do PDF Compressor or Compress PDF have ads?
Both PDF Compressor and Compress PDF show ads.
Which is updated more often, PDF Compressor or Compress PDF?
PDF Compressor ships an update every 8 days, and Compress PDF every 4 days. Most recently, PDF Compressor was updated on October 17, 2026 and Compress PDF on October 15, 2026.

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