Comparison

Smart PDF Compressor vs PDF Compressor

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

Head to head
About

Smart PDF Compressor

Features
Read full description

Smart PDF Compressor is a free, offline PDF compressor for iPhone and iPad that helps anyone emailing, uploading or storing a PDF dramatically reduce file size (for example, shrinking an 8-page scan from 5.6 MB to 669 KB, 88.1% smaller) — without the file ever leaving the device. ALL PROCESSING IS LOCAL Your documents never leave your device. No internet connection required, no cloud uploads, no data collection. Complete privacy guaranteed. KEY FEATURES - Target Size Mode: Pick an exact target file size (25 MB, 10 MB, 5 MB, 2 MB, or custom) to fit email and upload limits - Keep Text & Links Selectable: Preserves original text, hyperlinks, and document structure by default - Size Estimates First: See the estimated size for each option before you compress - Three Presets: Best quality, Balanced (recommended) and Smallest file - Advanced Options: 1-bit black & white mode, optional OCR text recognition, resolution override (72–300 DPI), and metadata removal - Smart Compression: Automatically detects scanned vs. digital pages and applies suitable settings - Batch Compression: Compress multiple PDFs at once with progress tracking - Share as ZIP: Bundle several compressed PDFs into one ZIP archive and name it before you share - Side-by-Side Preview: Compare original and compressed pages before saving - File History: Browse, preview, rename, and share all your compressed files - Appearance & Languages: Light/Dark mode and support for English, German, French, Japanese, and Korean - Works on iPhone and iPad HOW IT WORKS 1. Tap Choose PDF and pick a file from Files 2. Choose a preset or set a target size — see estimated results before compressing 3. Tap Compress PDF and see the exact before and after sizes 4. Share or save your compressed PDF, or send several as one ZIP PERFECT FOR - Reducing email attachment sizes - Fitting strict upload limits on portals and government forms - Saving storage space on your device - Compressing scanned receipts, contracts, and books - Preparing files for sharing via messaging apps Smart PDF Compressor uses advanced on-device image processing and structure-preserving optimization to deliver fast, reliable compression without sacrificing readability.

About

PDF Compressor

Features
Read full description

Make any PDF small enough to send. Pick a size (5 MB, 10 MB, anything) and PDF Compressor hits it. No guessing between "low, medium, high" quality settings, and no uploading your documents to someone's server: compression runs entirely on your iPhone and iPad. WHY PDF COMPRESSOR • Exact size targets: tap 1, 2, 5, 10 or 25 MB, or type any number you want with Premium. The result fits the limit every time. • 100% offline and private: your contracts, scans and statements never leave the device. No uploads, no account, no tracking. • Keeps text sharp: smart mode preserves selectable, searchable text whenever possible, and tells you when it did. • Preview before you send: open the compressed PDF right in the app and check the quality, with the exact savings on the row. • Batch mode: compress up to 20 PDFs in one run (Premium). • Works everywhere: pick files from the Files app, or send a PDF straight from Mail with "Open in PDF Compressor". • Savings history: track every megabyte you have freed, day by day. MADE FOR • Emailing scans that are over the attachment limit • Uploading documents to portals with strict size caps • Sending contracts and reports through chat apps • Archiving old scans without filling your storage FREE EVERY DAY One PDF a day, up to 20 MB, at full quality. No watermark, no sign-up, no ads. PDF COMPRESSOR PREMIUM Any file size, unlimited compressions, batch mode up to 20 files, custom size targets and PDF info removal. Premium is available as a weekly or yearly auto-renewable subscription. Subscriptions auto-renew until canceled. Cancel anytime in your Apple ID Subscriptions settings at least 24 hours before the renewal date. Privacy policy: https://app.innovaapps.ai/privacy Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula

Screenshots

Smart PDF Compressor4 screens
PDF Compressor4 screens

Verdict

The call

The clearest difference is in-app purchases: Smart PDF Compressor at none against PDF Compressor's 2. Smart PDF Compressor also leads on update cadence (every 10 days vs every 2 months). On price, ads, device support and iOS requirement 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. PDF Compressor sells 2 in-app purchases, starting at $4.99 per 7 days. Smart PDF Compressor asks for nothing beyond the download.

UpkeepUpdate frequency

Smart PDF Compressor ships an update every 10 days, PDF Compressor every 2 months. The most recent releases landed on October 24, 2026 and October 9, 2026 respectively.

Scorecard2 real differences Ā· 4 level
Smart PDF Compressor versus PDF Compressor: the parameters behind the verdict, then further details
ParameterSmart PDF CompressorPDF Compressor
PriceFreeFree
Update frequencyEvery 10 days — betterEvery 2 months
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhone, iPadiPhone, iPad
Requires iOS18.017.0 — better
Further details — not scored
Size4 MB6 MB
Age rating4+4+
DeveloperQuan DangAlex Gameli Heyman

In-app purchases

None

Smart PDF Compressor

No in-app purchases

2 purchases

PDF Compressor

Subscriptions2
  • Weekly$4.997 Days
  • Yearly$24.991 Year

Questions

Is Smart PDF Compressor free?
Smart PDF Compressor is free to download, with no in-app purchases.
Is PDF Compressor free?
PDF Compressor is free to download, with in-app purchases available.
Do Smart PDF Compressor or PDF Compressor have ads?
Neither Smart PDF Compressor nor PDF Compressor shows ads.
Which is updated more often, Smart PDF Compressor or PDF Compressor?
Smart PDF Compressor ships an update every 10 days, and PDF Compressor every 2 months. Most recently, Smart PDF Compressor was updated on October 24, 2026 and PDF Compressor on October 9, 2026.

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