How to use Compress PDF to 1 MB
- Add the PDF or several PDFs.
- The limit is already set to 1000 KB, just under 1 MB however the portal counts it.
- Click "Compress to 1000 KB" and save the file.
- Check the size shown before sending it.
Why use Compress PDF to 1 MB
- Limit already set
- Opens with 1 MB chosen, kept under 1,000,000 bytes.
- High quality on screens
- At 1 MB, most documents keep their pictures at the recommended screen quality.
- Batch
- Add several PDFs and save them all as a ZIP.
- Free and private
- Free to use with no sign-up, and the PDF never leaves your device.
About this tool
1 MB is the limit of many email attachments on corporate systems and of upload forms for supporting documents. Picture-heavy PDFs of twenty or more pages usually fit at the recommended quality; longer scans use the stronger settings, still readable on a screen.
If a document is still over 1 MB at the strongest picture setting, it is usually a long scan. Allowing pages to become pictures reaches the limit, or split the PDF and send it in parts; the result always says which happened.
Frequently asked questions
Is 1 MB 1000 KB or 1024 KB?
Systems differ: 1 MB can mean 1,000,000 bytes or 1,048,576. The limit here is 1000 KB and the file stays under 1,000,000 bytes, so it passes a portal that counts either way.
Will the text stay selectable?
Almost always at this size: shrinking the pictures is enough. The result says if pages had to become pictures.
Can I go smaller?
Yes. Type another limit or open the 500 KB, 200 KB or 100 KB pages.
Is my PDF uploaded?
No. Everything happens in your browser.
Does the tool work on a phone?
Yes. It runs in the browser on iPhone and Android as well as on a computer, and saves to Files or shares straight to email.
Built and maintained by Saad Naeem
AI engineer, Doha · Updated