Compress PDF to 500KB
Drop your file and the tool re-encodes it until it fits under 500 KB, in this tab, with no upload. Scans and photo PDFs usually get there. Text-only PDFs may not.
Your file never leaves your device.
Drop your file here, or click to choose
When you need 500 KB
500 KB is a common cap on web forms, older systems and student or recruitment portals, often for one document or a bundle of supporting pages.
It is generous enough for a legible multi-page scan, which is why it is the target we would try first if the form does not say exactly 100 KB or 200 KB.
A recruitment portal takes one PDF of up to 500 KB, and your qualification certificates scanned together are 7 MB. Setting the target to 500 KB shrinks the scan until it fits, and shows the final size before you download.
What gets sacrificed at 500 KB
In our test every image-based file reached 500 KB, including a 20-page, 29 MB scan that came out at 489 KB. At that size a long scan is readable but soft, at roughly 40 dpi, so check small print before you submit.
If it will not reach 500 KB
A text-only PDF. If the file is already smaller than 500 KB, leave it alone. Turning a text PDF into images can make it larger.
Still too big. A very long scan can miss. Split it into parts, or remove pages the form does not need.
How to check nothing is uploaded (500 KB)
Open your browser developer tools, switch to the Network tab, then drop a file and compress it. No request carries the document. The full method is in how to tell if a PDF tool uploads your file.
Limits (500 KB)
- Every page is re-rendered as an image, so text is no longer selectable or searchable.
- A mostly-text PDF may not reach 500 KB; the tool reports the smallest usable size instead.
- Very large scans can take a few extra seconds while the tool searches for the right quality.
Questions (500 KB)
How do I compress a PDF to 500KB?+
Can every PDF get under 500KB?+
Is my PDF uploaded when I compress it?+
Will the text still be selectable?+
Is there a free limit or a watermark?+
Will 500KB keep a scan readable?+
Tools that help it fit 500 KB
Extract PDF Pages, Delete PDF Pages and Split PDF reduce the page count before compressing. For email limits, read what to do when a PDF is too big to email. Other readers compare EasyPDFLoad with iLovePDF before they upload a document.
Other size targets besides 500 KB
100 KB, 200 KB, 1 MB, 2 MB, 5 MB, 10 MB. All of them are listed on the compress to an exact size page.
Need a different size or a fixed level? Use the main Compress PDF tool.