About the Compress PDF tool
Email providers usually cap attachments at 20–25 MB, and many government and university portals reject PDFs over 2 MB or 5 MB. Scanned documents and files exported from design software are often far bigger than they need to be. The Wartatren.biz.id PDF compressor reduces that size so your document goes through first time.
You choose how aggressive the compression should be. The Recommended, Strong and Light levels re-render every page at an efficient resolution and save it as an optimised JPEG, which is extremely effective for scans and image-heavy files. The Lossless level keeps your text and vector graphics intact and simply rewrites the file structure more efficiently. A table shows the size before and after, and if a file cannot be made smaller we give you the original back rather than a bigger one.
How to compress a PDF
- Add one or more PDF files to the box above.
- Pick a compression level. Recommended suits most documents.
- Click Compress PDF and wait while each page is optimised.
- Check the size comparison table, then download your smaller files.
Why use Wartatren.biz.id Compress PDF?
Four levels
From lossless optimisation to maximum compression, you decide the balance between size and quality.
Batch compression
Compress several PDFs in one go and download them together as a ZIP.
Honest results
You see the exact size before and after. Files that cannot be reduced are returned unchanged.
No upload
Compression runs on your device, so sensitive scans never leave your computer.
When is it useful?
Compressing is the fix when an email bounces with “attachment too large”, when a visa or job portal limits uploads to a few megabytes, or when you want to archive years of scanned receipts without filling your drive. For a deeper look at why PDFs get big and other ways to slim them down, read our guide on how to reduce PDF file size.
Frequently asked questions
How much smaller will my PDF be?
It depends on the content. Scanned documents and photo-heavy PDFs often shrink by 50–90% at the Recommended level. Text-only PDFs are already compact, so savings are smaller.
Will I still be able to select and search the text?
With the Lossless level, yes. The other levels turn each page into an image to achieve bigger savings, so text becomes part of the picture and is no longer selectable.
Which level should I choose?
Use Recommended for everyday sharing, Strong when you must hit a strict size limit, Light for documents you will print, and Lossless for contracts or text you need to copy.
Is there a file size limit?
There is no server limit because nothing is uploaded. Very large files (hundreds of pages) depend on your device's memory and may take a minute.