Reduce PDF Size Under 300KB - Quick & Reliable Online Tool
The 300KB limit is a common threshold for many legacy systems, HR portals, and government application forms. Achieving this without making the text unreadable is a technical challenge.
Official Requirements & Limits
Many recruitment portals (like those for state govt jobs) strictly enforce a 'less than 300KB' rule. If your file is 301KB, it will be rejected by the automated validator.
Start Processing Your Document
No signup required. Your privacy is our priority.
Use Free PDF Compressor — No Signup, No WatermarkStep-by-Step Guide
Upload the PDF you wish to shrink.
Select the 'Extreme Compression' or 'Target Size' option if available.
Download the result and verify the size is below 307200 bytes (300KB).
Rename the file appropriately and complete your submission.
Troubleshooting Tips
- If it's still over 300KB, try extracting only necessary pages using our 'Split' tool.
- Convert color images to grayscale to save significant space.
- Flatten the PDF to remove unnecessary layers and metadata.
Frequently Asked Questions
What if my original file is 10MB?
It's possible to reach 300KB, but some high-res images might lose detail.
Is 300KB the same as 0.3MB?
Technically yes, though systems usually check the byte count (300 x 1024).
Will this work for my resume?
Perfectly. Resumes are mostly text and compress very well to under 300KB.
Do you support batch compression?
Yes, check our settings for processing multiple files to the same target size.
How long does it take?
Usually less than 5 seconds from upload to download link.
Explore More PDF Solutions
Looking for something else?
View All PDF Solutions & Guides