Compress a PDF to 100KB, 200KB, 500KB or any size — for forms, email and WhatsApp.
No daily limit No watermark No sign-up Files never uploaded
How small should it be?
Your PDF is ready
Popular PDF sizes
How to reduce PDF size
1Choose your PDFTap the pink box and pick the PDF from your phone or computer.
2Pick a sizeChoose a size your form allows, like 200KB, or just “Smaller”.
3DownloadSave the smaller PDF. We show you the new size before you upload it.
Questions people ask
How do I compress a PDF to 100KB?
Choose your PDF, tap “100KB” and press the big button. The tool tries clearer settings first and keeps the best one that fits under 100KB.
Will my PDF look worse?
A little, depending on how small you go. “Smaller, good quality” keeps text sharp. Very small sizes like 100KB for many pages may look softer.
Can I still copy text from the smaller PDF?
When we shrink to a set size, each page is saved as a picture, so text can no longer be selected. Keep your original file if you need to copy text.
Is it safe for my documents?
Yes. Your PDF is processed inside your own browser and is never uploaded to any server.