MSRX PDF Compressor
Reduce Size. Keep Quality.
Free · Designed for iPad. Not verified for macOS.
Now keeps your text selectable and searchable. Compress batches, fit files under an email limit, and see exactly where your megabytes are going..
MSRX PDF Compressor makes PDFs smaller without turning your text into pictures.
Most PDF compressors flatten every page to an image. The file shrinks, but you
lose selectable text, search, links, and anything a screen reader can use. This
one looks at each page first. Pages with real text keep it. Pages that are scans
or photographs get re-encoded, which is where nearly all the saving in a scanned
document lives anyway.
TEXT STAYS TEXT
A 135-page workbook came out 33% smaller with all 138,000 characters still
selectable and searchable. A 224-page scanned textbook went from 100 MB to 9 MB.
The difference is the document, not the setting — and the app tells you which
one you have before you commit.
FIT UNDER A LIMIT
Tell it the limit your email or upload form imposes — 5, 10, 20 or 25 MB — and it
works out the settings for you, testing real pages rather than guessing. If it
cannot reach your limit, it says so and hands back the smallest file it managed.
It will not pretend it succeeded.
SEE WHERE THE MEGABYTES ARE
Before you compress, the app breaks the file down: images, fonts, page content,
overhead. Then it tells you plainly what to expect — "10 of 28 pages are scans.
Those compress well; the rest keep their text."
COMPARE BEFORE AND AFTER
Put the original and the result side by side, page by page, and confirm for
yourself that nothing was lost.
ALSO IN THIS VERSION
• Compress several PDFs at once, with per-file results
• History, with a running total of everything you have saved
• Greyscale conversion for scans and photographs
• Compress from any app's share sheet, without opening this one
• A Shortcuts action, for compressing as part of an automation
• Full Dark Mode, Dynamic Type, and VoiceOver support
HONEST ABOUT WHAT IT CANNOT DO
Compression works on images. A document that is mostly text and embedded fonts
has very little to give, and the app says so up front instead of letting you
find out afterwards. Scanned documents are where you will see the dramatic
numbers.
PRIVATE BY DESIGN
Everything happens on your iPhone or iPad. Your files are never uploaded, and
the app has no analytics, no accounts, and no network access at all.
FILE LIMITS
Up to 500 MB and 2,000 pages per document.
Free. No ads, no subscriptions, no in-app purchases.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Rebuilt from the ground up.
YOUR TEXT STAYS TEXT
The old version turned every page into an image. Files got smaller, but you lost
selection, search, links, and anything VoiceOver could read. This version looks
at each page first: pages with a real text layer are kept as they are, and only
pages that are genuinely scans get re-encoded. A 135-page workbook now comes out
33% smaller with all 138,000 characters intact.
NEW
• Compress several PDFs at once, with per-file results
• Fit a file under 5, 10, 20 or 25 MB — it finds the settings by testing real
pages, and tells you honestly if your limit cannot be reached
• See where your megabytes are before you compress, broken down by images,
fonts and page content
• Compare the original and the result side by side, page by page
• History, with a running total of everything you have saved
• Greyscale conversion for scans and photographs
• Compress straight from any app's share sheet
• A Shortcuts action, for use in automations
FIXED
• A crash on files whose size could not be read
• Pages rotated 90 or 270 degrees rendering sideways
• Large documents running out of memory — a 224-page, 100 MB scan now peaks at
35 MB of memory and finishes in about four seconds
• Text-only PDFs coming back larger than they started; those are now reported as
already optimised and left alone
CHANGED
• Redesigned throughout, with full Dark Mode and Dynamic Type support
• The app is now called MSRX PDF Compressor
• The compression recommendation reads the document's actual structure instead
of guessing from the filename
The developer, Mrinal Singh Raja, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Mrinal Singh Raja
- Size
- 7.3 MB
- Category
- Productivity
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 Mrinal Singh Raja
