Compress PDF to 300 KB
Upload your document, then receive a smaller file ready for sharing.
Supports PDF
Size up to 100 MB
Supports PDF
Size up to 100 MB
How to compress PDF to 300 KB
Pick a compression level by its estimated size, then save the smaller file.
- 1.🚀
Upload your PDF
Select the PDF you want to reduce from your computer, phone, or tablet.
- 2.⚡
Choose a level
Check the estimated size for each level and pick the one that gets under 300 KB.
- 3.✅
Download the result
Save the smaller PDF file to your device after processing.
More PDF tools you might need
Why use our tool to compress PDF to 300 KB
Meet 300 KB file limits
A 300 KB file fits upload limits on many job application and government service portals.
Clear, readable results
The finished PDF file keeps text readable and visuals clear, so you can review it before uploading or sharing it.
Browser-based access
Use our online tool in your browser with no software installation. The controls are simple on computers and mobile devices.
Quick compression
Three steps take you from upload to download, and most files are ready in under 30 seconds.
Easier file sharing
A smaller PDF attaches to emails more easily and uploads faster to forms and portals, so you can send it as soon as it is ready.
Free online tool
You can compress PDF to 300 KB free of charge, with no sign-up. The result stays a PDF, ready to attach to online forms or emails.
Frequently asked questions
Will a scanned PDF fit into 300 KB?
It depends mostly on the page count. Every scanned page is stored as an image, so scans are much larger than text-based PDFs. Choose High and check the estimated size. If it is still over, rescanning at a lower resolution, such as 150 DPI, makes it much easier to compress PDF to less than 300 KB.
Will photos make 300 KB harder to reach?
Yes. Photos hold far more data than text, so each one adds noticeably to the file size. Start with High, which gives the smallest result, and check the estimate. If several large photos still keep the file above 300 KB, consider keeping only the ones the document really needs.
Is 300 KB enough for both pages of a short application?
Typically, 300 KB is sufficient for a short two-page application if it primarily contains text, as text files usually have smaller file sizes. However, including images, especially scanned documents or high-resolution photos, can significantly increase the file size, potentially requiring further compression to fit within the 300 KB limit.
Does compressing a PDF to 300 KB affect quality?
It depends on what the file contains. Text usually stays sharp, while photos may lose some fine detail at High. For text-heavy documents, Low or Medium often gets under the target, so you can compress PDF to 300 KB without losing quality. Choose the lightest level whose estimate fits.
Can I compress a PDF to 300 KB on my phone?
Yes. Open the page in your phone's browser, upload the PDF, choose a level, and download the result. It works on Android and iPhone with nothing to install, so you can reduce PDF to 300 KB right before you submit a form from your phone.
Compress PDF to 300 KB online free of charge
Upload your PDF, choose a level by its estimated size, and download a smaller file that is easier to send.