Comparison

Compress PDF vs PDF Size Reducer & Compressor

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

Head to head
About

Compress PDF

Easily reduce the size of PDF files for better storage and sharing. This tool also allows you to resize pages to various standard formats and convert images or text into PDFs. Advanced features include OCR and annotation.

Highlights
  • PDF compression with adjustable quality
  • Resize pages to standard and custom dimensions
  • Convert photos and text to PDF
  • Smart document scanner
  • OCR for text extraction
  • PDF annotation and markup
  • Merge and extract PDF pages
Read full description

Compress PDFs and make PDFs smaller easily. Optimize PDFs for storage and sharing. Need to format a document for printing, work, or official submission? Resize PDF pages to A4, Letter, Legal, Tabloid, A3, and Custom Dimensions. Features: • Adjustable Quality: Use a simple slider to balance file size • Target Size: Set a goal size • Live Preview: Compare original vs. compressed file size instantly • Quick Share: Easily save to Files or share via email and messages • Smart Document Scanner: Capture and crop documents cleanly right from your camera • Photos to PDF: Convert your images and photos directly into a clean PDF document • Quick Text Creator: Convert plain text typed on your keyboard directly into flat, print-ready text documents • Advanced Organizer: Merge separate files together or cleanly extract specific pages into a new document • Live Text OCR: Instantly lift editable text directly out of captured images • PDF Markup: Annotate documents by drawing, highlighting, and adding text directly to the page PDFs are flattened during export. Text, links, and bookmarks will no longer be selectable. Free users: • Standard PDF Compression (1 per day) • Standard A4 Resizing (1 per day) • Photos to PDF conversion (1 per day) • Quick Text to PDF documents (1 per day) • PDF Markup & Annotation tools (1 per day) Premium unlocks: • Target File Size mode (specify KB/MB) • Merge separate PDFs together • Extract specific pages into a new file • Live Text OCR Extraction • Custom Page Sizer & All Page Formats • No Daily Limit Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://shotexstudio.com/compress-pdf-resize-pdf/ On-Device Processing: Private and secure—no files ever leave your phone.

About

PDF Size Reducer & Compressor

Features
Read full description

Is your PDF too big to email, upload or share? PDF Size Reducer makes large PDF files smaller in seconds, right on your iPhone or iPad. Just select a PDF, choose a compression level and tap Compress. You'll instantly see the original size, the new size and how much space you saved. Then share or save your file anywhere with one tap. WHY PDF SIZE REDUCER? • Fast & simple – Select, compress, done. No complicated settings. • Choose your quality – Low for maximum compression, Medium for a balance of size and clarity, or High for the best image quality. • Before & after comparison – See exactly how many MB you saved on every file. • Private by design – Your PDFs are processed on your device. Your documents are not uploaded to our servers. • Smart protection – If a PDF is already as small as it can be, your original file is kept unchanged. • Compression history – Find, re-share or recompress your recent files anytime. • Share anywhere – Send compressed PDFs via Mail, Messages, WhatsApp, or save them to Files and iCloud Drive. PERFECT FOR • Email attachments that exceed size limits • Uploading documents to job applications, school portals and government websites • Sending invoices, contracts, scanned documents and reports • Freeing up storage space on your device PDF SIZE REDUCER PRO Upgrade to Pro to unlock everything: • Unlimited compressions • High Quality mode • Batch compression – compress multiple PDFs at once and share them all together • PDF editing – rotate, reorder and delete pages before compressing • Full compression history Free users can compress 1 PDF per day. SUBSCRIPTION INFORMATION PDF Size Reducer Pro is available as an auto-renewable subscription. Payment will be charged to your Apple ID account at confirmation of purchase. The subscription automatically renews unless it is canceled at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period. You can manage and cancel your subscription in your App Store account settings after purchase. Any unused portion of a free trial period, if offered, will be forfeited when you purchase a subscription. CONTACT & SUPPORT Need help or have a suggestion? Contact us: https://upbeat-animantarx-f5b.notion.site/SUPPORT-2ebee4e7706780c7a2d5c496801eed5b?source=copy_link Terms of Use: https://upbeat-animantarx-f5b.notion.site/PDF-Compressor-Terms-Conditions-2edee4e770678011bdecca736c82cdc0?source=copy_link Privacy Policy: https://upbeat-animantarx-f5b.notion.site/PDF-COMPRESSOR-Privacy-Policy-2edee4e7706780f1a67ef10873dadf7b?source=copy_link

Screenshots

Compress PDF3 screens
PDF Size Reducer & Compressor4 screens

Verdict

The call

The clearest difference is update cadence: Compress PDF at every 10 days against PDF Size Reducer & Compressor's every 3 weeks. On price, ads, in-app purchases and device support there is nothing between them.

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Compress PDF sells 3 in-app purchases, starting at $1.99 per 7 days and PDF Size Reducer & Compressor sells 2 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Compress PDF ships an update every 10 days, PDF Size Reducer & Compressor every 3 weeks. Both last shipped on November 5, 2026.

Scorecard1 real difference · 9 level
Compress PDF versus PDF Size Reducer & Compressor: the parameters behind the verdict, then further details
ParameterCompress PDFPDF Size Reducer & Compressor
PriceFreeFree
Rating4.7 (15 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings15 — better—
Update frequencyEvery 10 days — betterEvery 3 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationFreemium—
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.617.0 — better
Further details — not scored
Size7 MB10 MB
Age rating12+4+
DeveloperPremiumAl LimitedBaris Mustafa Han Unlu

In-app purchases

3 purchases

Compress PDF

Subscriptions2
  • 会员7 Days trial3 variants$1.997 Days
  • 会员3 Days trial$1.997 Days
One-time1
  • Premium$4.99
2 purchases

PDF Size Reducer & Compressor

Subscriptions2
  • PDF Compress$2.997 Days
  • Smart Compression$5.991 Month

Questions

Is Compress PDF free?
Compress PDF is free to download, with in-app purchases available.
Is PDF Size Reducer & Compressor free?
PDF Size Reducer & Compressor is free to download, with in-app purchases available.
Do Compress PDF or PDF Size Reducer & Compressor have ads?
Neither Compress PDF nor PDF Size Reducer & Compressor shows ads.
Which is updated more often, Compress PDF or PDF Size Reducer & Compressor?
Compress PDF ships an update every 10 days, and PDF Size Reducer & Compressor every 3 weeks. Most recently, Compress PDF was updated on November 5, 2026 and PDF Size Reducer & Compressor on November 5, 2026.

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