Compress PDF to Under 300KB Online Free
Reduce PDF file size with adjustable image quality or a target such as 200 KB. Text stays sharp and selectable.
or drag & drop your files directly here
Several files? Drop them all: each gets the same settings and they download as one ZIP.
Files are processed locally in your browser and never uploaded to any server.
How to use Compress PDF to Under 300KB Online Free
Follow these simple steps to process your files in seconds.
Choose your PDF
Pick the file that is over the 300KB limit, from your computer or phone.
Keep "Under 300KB" selected
The target is already set to 300KB. Images are recompressed first; text stays sharp.
Download
Download the smaller PDF and upload it. You can batch up to 50 files into one ZIP.
Frequently Asked Questions
Which uploads usually ask for 300KB or less?
Job and university application systems often cap each document at around 300KB. Check the limit shown on the form, then pick the closest target.
Will the text still be readable?
Yes. MyPDF recompresses the images inside the PDF and keeps text as text, so it stays sharp and selectable. Pages are only turned into images if that is the only way to reach the size.
What if the file is still over 300KB?
Try the High compression level, convert the PDF to grayscale, or remove pages you do not need, then compress again. Very long scans may need to be split.
Is my document uploaded anywhere?
No. Compression runs entirely in your browser, so certificates, IC copies and payslips never leave your device.