Comparison

PDF Squeeze vs PDF Under

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

Head to head
About

PDF Squeeze

Reduce PDF file sizes directly on your device without needing an internet connection. This app allows for offline compression, splitting, reordering, and creation of PDFs from photos, ensuring your documents remain private.

Highlights
  • Offline PDF compression
  • Create PDFs from photos
  • Split and reorder pages
  • On-device processing
  • Built-in PDF viewer
  • Share Sheet integration
Features
Read full description

PDF Squeeze is a private PDF compressor, reader, editor, and signing tool for iPhone and iPad. Make large PDFs smaller, ask questions about what’s inside, sign documents, mark up pages, and organize your files — all on your device. ASK YOUR PDF ANYTHING Open a contract, lease, manual, research paper, or any other PDF and ask questions in plain language: “What’s the cancellation policy?” “When does this renew?” “What did they agree to pay?” PDF Squeeze answers with page references you can tap to jump directly to the source. Check the original wording yourself instead of relying on an answer without context. AI answers run entirely on your device. Devices with Apple Intelligence use the system model. Other compatible devices can add an optional on-device model. Your documents are not uploaded to a server. Scanned, photographed, and faxed documents work too, thanks to on-device OCR. SIGN WITHOUT PRINTING Sign with your finger, or type your name and choose a handwriting style. Your signature is stored as strokes and letterforms instead of a photograph, so it stays sharp at any zoom and adds almost no extra file size. Signatures are embedded directly into the PDF page rather than added as a floating annotation. They remain part of the document when you compress it or share it with someone else. MARK UP LIKE PAPER Highlight important passages, draw freehand, and add text boxes that you can resize to fit your page. Made a mistake? Undo your changes all the way back. COMPRESS WITHOUT THE BLUR PDF Squeeze starts with a vector-preserving compression pass whenever possible, keeping text crisp and selectable. Pages are only re-rendered when doing so actually reduces the file size. Your compressed PDF will never be larger than the original. HIT AN EXACT FILE SIZE Need to meet an email limit or upload portal requirement? Use Target Size and choose 1 MB, 2 MB, 5 MB, 10 MB, or 25 MB. PDF Squeeze searches for the best visual quality that fits just under your chosen limit. If a target cannot be reached, PDF Squeeze tells you honestly and produces the smallest file possible. SEE THE DIFFERENCE Drag the Before & After slider across any page to compare the original document with the compressed version. See the result for yourself. EVERYTHING ELSE YOU NEED • Four quality presets: Light, Balanced, Strong, and Extreme • Automatic grayscale detection for additional savings on scanned documents • Rearrange, rotate, and delete pages by dragging thumbnails • Extract selected pages into a new PDF • Merge multiple PDFs into one document • Turn one or more photos into a PDF • Search the full text of your document • Open PDFs directly from Files with “Open with PDF Squeeze” • Keep a history of compressed documents and lifetime storage savings • Choose Light, Dark, or System appearance PRIVATE BY DESIGN Compression, OCR, signatures, markup, and AI answers happen on your iPhone or iPad. Your documents are never uploaded. No servers, no account, no tracking, and no ads. TRY IT FREE One purchase unlocks the full app permanently. No subscription.

About

PDF Under

Features
Read full description

Your PDF is ready. Then the upload form says: file too large. Maybe it needs to be under 10 MB. Or 2 MB. Or even 500 KB. You don't want to learn compression settings, and you definitely don't want to keep guessing—compress, check the size, try again, compress again. You just need the PDF to fit. That's what PDF Under is built for. Tell it the MB or KB you need, and it works toward exactly that number. But making a PDF smaller is only half the problem. It still has to look like your PDF. Some compression methods shrink a file by turning every page into a picture—smaller, yes, but the text is no longer selectable, and the document never quite looks right again. PDF Under does it differently. Whenever possible, it keeps your text and vector content untouched, and compresses only the embedded images that were taking up the space in the first place. Smaller file. Same document. You choose the number. 500 KB, 1 MB, 2 MB, 5 MB, 10 MB, or a custom target of your own—no "low, medium, high" guessing games, just the size you were actually asked for. And before you save or share anything, you see the result first: the final size, the finished pages, exactly what you're about to send. Where does this happen? On your phone. Not on a server somewhere. Your PDF is never uploaded, which matters more than usual when the document you're shrinking is the one you'd rather not hand to a random compression website in the first place. No account. No sign-in. Just your file, compressed, still yours. Now, the honest part. Not every target is reachable. A fifty-page scanned document doesn't become 500 KB without something giving—that's just how file size and image quality work, and PDF Under won't pretend otherwise. When your target is more aggressive than the document can survive, it tells you plainly, shows you the smallest version that's still readable, and lets you decide from there. No silent damage. No surprises when you open the file later. This is the app for the moment a portal, a form, an inbox, or a government website hands you a number and expects you to hit it—job applications, school submissions, legal filings, an email that keeps bouncing back because the attachment is too big. Select the PDF, set the target, compress, check the result, send it. Five steps, and you're done. PDF Under is free to try—your first three compressions cost nothing. After that, a Weekly, Yearly, or Lifetime plan unlocks unlimited use, so you're never stuck mid-deadline wondering if today's the day you run out. Subscriptions renew automatically unless canceled at least 24 hours before the current period ends, and you can manage or cancel anytime in your Apple Account settings. Full pricing is shown in the app before you're asked to pay anything. Because when a website tells you your PDF is too large, you shouldn't have to become a compression expert just to send a document. You should just be able to get it under the limit. By downloading, you agree to the Standard Apple End User License Agreement: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

PDF Squeeze4 screens
PDF Under4 screens

Verdict

The call

The clearest difference is update cadence: PDF Squeeze at every 2 days against PDF Under's every 3 weeks. PDF Squeeze also leads on device support (3 vs 1). On price, ads, in-app purchases and iOS requirement 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. PDF Squeeze sells 1 one-off in-app purchase and PDF Under sells 3 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

PDF Squeeze ships an update every 2 days, PDF Under every 3 weeks. The most recent releases landed on October 13, 2026 and October 9, 2026 respectively.

Scorecard2 real differences · 8 level
PDF Squeeze versus PDF Under: the parameters behind the verdict, then further details
ParameterPDF SqueezePDF Under
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 2 days — betterEvery 3 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, Mac — betteriPhone
Requires iOS18.017.6 — better
Further details — not scored
Size22 MB3 MB
Age rating4+4+
DeveloperMOHAMMAD AHMADI SADREmre KABOGLU

In-app purchases

1 purchases

PDF Squeeze

One-time1
  • PDF Squeeze$2.99
3 purchases

PDF Under

Subscriptions2
  • PDF Under Weekly$1.997 Days
  • PDF Under Yearly$13.991 Year
One-time1
  • PDF Under Lifetime$19.99

Questions

Is PDF Squeeze free?
PDF Squeeze is free to download, with in-app purchases available.
Is PDF Under free?
PDF Under is free to download, with in-app purchases available.
Do PDF Squeeze or PDF Under have ads?
Neither PDF Squeeze nor PDF Under shows ads.
Which is updated more often, PDF Squeeze or PDF Under?
PDF Squeeze ships an update every 2 days, and PDF Under every 3 weeks. Most recently, PDF Squeeze was updated on October 13, 2026 and PDF Under on October 9, 2026.

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