HyperCompress Tools · Free
Compress PDF and PowerPoint files without uploading them anywhere
Two modes: fit under a size limit (20 MB by default) or squeeze as hard as possible. Everything runs offline, inside the browser.
- Price
- Free
- Data sent out
- None — everything runs in your browser
- Browsers
- Chrome, Edge, Opera, Brave, Arc, Yandex Browser
- Version
- 1.4.0
- Size
- 12.26 MB
- Interface languages
- English, Russian
- Category
- Tools
Mail servers usually reject attachments above 10–25 MB, and a deck full of photographs easily hits a hundred. Online compressors solve that by uploading your file to someone else's server — which for internal material is often simply not allowed.
HyperCompress shrinks the file inside the browser. Rather than re-encoding the whole document, it finds the raster images inside it — normally responsible for about 90% of the weight — and rewrites those, leaving text, fonts, vectors and structure untouched.
What it does HyperCompress
Fit-under-limit mode
Set a target size, 20 MB by default, and the extension picks settings that get the file under it.
Maximum compression mode
Aggressive processing: images capped at 1280 px, JPEG quality 55 — for when only the size matters.
PPTX with its design intact
Images are decoded, downscaled and re-encoded while transparency, layouts, text, fonts, charts, animations and metadata all stay in place.
PDF with text preserved
Only embedded images are rewritten; selectable text, vectors, fonts, links and bookmarks are left alone.
A clear report per file
You see the before and after size and where the savings came from.
Batch processing
Compress several files in one pass.
Honest warnings
Password-protected documents are rejected and legacy .ppt files are detected and flagged — no silent failures.
English and Russian interface
Switchable in settings.
How to use it
- Click the HyperCompress icon and drag a PDF or PPTX into the window.
- Choose a mode: fit under a size you set, or maximum compression.
- Wait for processing — the report shows before and after size for each file.
- Save the result. Your original files are not modified.
Who it is for
- Send a deck through corporate email without splitting it up
- Shrink a batch of reports before dropping them in a shared folder
- Reduce a PDF catalogue before publishing it on a site
- Prepare files for a system with a strict attachment limit
- Compress documents with internal data that must not touch online services
How to install
Open the extension page
Click “Add to Chrome” — it opens the official Chrome Web Store listing.
Confirm the install
Chrome shows the permissions. Press “Add extension” to confirm.
Pin the icon
Click the puzzle icon next to the address bar and pin the extension so it stays visible.
Open it
Click the icon. No account, no payment, no configuration needed.
Edge, Opera, Brave, Arc and Yandex Browser install it the same way — they are Chromium-based and open the Chrome Web Store directly. If your browser asks for extra confirmation, choose “Install anyway”.
Frequently asked questions
How much smaller does the file get?
It depends on the content: photo-heavy decks often shrink several times over, while text-and-vector documents barely change because there is little to compress.
Does it ruin the presentation's design?
No. Only raster images change; layouts, text, fonts, charts, animations and metadata are preserved as-is.
Is the file sent to the cloud?
No. Not a single network request — compression happens entirely in the browser and no account is required.
Is the old .ppt format supported?
No, only .pptx. Legacy files are detected and flagged so you can re-save them in PowerPoint.
What about password-protected PDFs?
They are rejected: rewriting the contents requires the document to be decrypted first.
How is this different from zipping the file?
ZIP barely shrinks PDF and PPTX because their contents are already compressed. HyperCompress shrinks the images themselves, which is where the real savings are.
Other extensions in the set
HyperVideo
Finds every video a page loads, shows its real size and duration, and saves it in the quality you pick. Handles HLS (m3u8), DASH (mpd), MP4 and screen recording with audio.
Learn more →HyperScreen
Captures an entire web page automatically, including modern apps where an inner container scrolls instead of the page. Opens an editor right away: crop, brush, eraser, export to PNG, JPG or PDF.
Learn more →HyperPDF
Everything you would normally use an online converter for — without sending the document to anyone. Files are processed in the tab's memory and are gone when you close it.
Learn more →