Comparison

FileSizeFix 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

FileSizeFix

Easily reduce the size of photos, videos, documents, and audio files directly on your device. Achieve exact file sizes for emails, uploads, or sharing, with options to edit and protect your privacy.

Highlights
  • Compress photos, videos, PDFs, audio, and documents
  • Set exact target file sizes in KB or MB
  • Resize images to specific pixel dimensions
  • Batch processing for multiple files
  • Offline processing and privacy protection
  • Edit images, videos, and PDFs before export
  • Scan paper documents to PDF
Features
Read full description

Make any file small enough to send, upload or attach. FileSizeFix compresses photos, PDFs, videos, audio and Office documents to the exact size you need — entirely on your device. Typical jobs it solves: • Email attachment too large: compress photos to 100 KB or a PDF to 1 MB • Job application: shrink your CV or certificate PDF to the portal's limit • Send a video that is too big for chat: make the MP4 smaller in one step • Resize an image to exact pixels for a profile photo, form or website Hit an exact size: • Set a target in KB or MB and get a file that fits • Choose exact pixel dimensions for photos and videos • Presets for 50 KB, 100 KB, 200 KB, 500 KB and 1 MB • Compare before and after with a live preview Every file you need to send: • Photos: JPG, PNG, HEIC, WEBP, AVIF, SVG and more • Documents: PDF, Word, Excel and PowerPoint • Video and audio, including format conversion • Scan paper documents straight to a multi-page PDF Built for upload limits: • Smart Fix reads the requirements from a screenshot and prepares matching files • Batch several files in one run • Save to Files or Photos, or share directly Privacy comes standard: • Files are processed on your device and never uploaded • Works completely offline • Review and remove metadata such as GPS before sharing • Blur or pixelate faces, text and license plates in photos and videos Edit before you export: • Crop, rotate and resize images • Trim, crop, rotate or mute videos • Edit, annotate and sign PDFs and scans Formats it opens: • Images: JPG, PNG, HEIC, WEBP, AVIF, GIF, TIFF, BMP, SVG and camera RAW • Documents: PDF, Word (DOCX), Excel (XLSX) and PowerPoint (PPTX) • Video: MP4, MOV, M4V, 3GP, MPG and MPEG • Audio: MP3, M4A, AAC, WAV, AIFF, FLAC and OGG • Some formats depend on the codecs your device supports In three steps: • Add files from your photos, your file manager or another app's share menu • Set the goal: a size in KB or MB, exact pixel dimensions, or a preset • Check the preview, then save a new file or share it straight away Good to know: • No account, no sign-up and no cloud — it works in airplane mode • Your originals are never overwritten; every result is a new file • Batch mode applies the same target to many files in one run • Quality stays as high as the target size allows, and you see it before saving Selected files and their contents are processed on your device and are not uploaded to a server. Detection results are suggestions and can miss content, so always check the preview before exporting. FileSizeFix is free with no limit on how many files you compress. Ads keep it free: a short full-screen ad runs while a job is processing, and the finished files are ready the moment it closes — saving, exporting and sharing are never interrupted by advertising. FileSizeFix Pro is an optional auto-renewing subscription, monthly or yearly, that removes all ads — every tool stays available either way. Prices are shown before purchase and may vary by country. The subscription renews automatically unless canceled and can be managed in your store account settings. Privacy Policy: https://filesizefix.com/privacy/ Terms of Use: https://filesizefix.com/terms/ Download FileSizeFix and get any file under the limit.

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.

Screenshots

FileSizeFix4 screens
PDF Compressor2 screens

Verdict

The call

The clearest difference is in-app purchases: PDF Compressor at none against FileSizeFix's 2. PDF Compressor also leads on update cadence (every 8 days vs every 3 weeks). 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. FileSizeFix sells 2 in-app purchases, starting at $1.99 per month. PDF Compressor asks for nothing beyond the download.

UpkeepUpdate frequency

FileSizeFix ships an update every 3 weeks, PDF Compressor every 8 days. The most recent releases landed on September 24, 2026 and October 1, 2026 respectively.

Scorecard2 real differences Ā· 6 level
FileSizeFix versus PDF Compressor: the parameters behind the verdict, then further details
ParameterFileSizeFixPDF Compressor
PriceFreeFree
Positive reviews100.0% of reviews—
Update frequencyEvery 3 weeksEvery 8 days — better
AdsYesYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPod
Requires iOS16.015.0 — better
Further details — not scored
Size50 MB5 MB
Age rating4+4+
DeveloperDeep Platforms GmbHTAREQ ALHUSAINI

In-app purchases

2 purchases

FileSizeFix

Subscriptions2
  • FileSizeFix Pro Monthly$1.991 Month
  • FileSizeFix Pro Yearly$17.991 Year
None

PDF Compressor

No in-app purchases

Questions

Is FileSizeFix free?
FileSizeFix is free to download, with in-app purchases available.
Is PDF Compressor free?
PDF Compressor is free to download, with no in-app purchases.
Do FileSizeFix or PDF Compressor have ads?
Both FileSizeFix and PDF Compressor show ads.
Which is updated more often, FileSizeFix or PDF Compressor?
FileSizeFix ships an update every 3 weeks, and PDF Compressor every 8 days. Most recently, FileSizeFix was updated on September 24, 2026 and PDF Compressor on October 1, 2026.

Other comparisons