Compress PDF to 300 KB

How to compress a PDF below 300 KB

1. 1

   Choose a PDF

   Click Choose PDF or drag the file onto the page. The file stays on your device.

2. 2

   Click Compress PDF

   The 300 KB limit is already set, so there is nothing to type. If the PDF is already under 300 KB, you get it back unchanged.

3. 3

   Check the result

   You will see the size before and after. If the file cannot get down to 300 KB, the page tells you how much too big it is and shows the Try a lower resolution button.

4. 4

   Download the file

   Before the download we check that the smaller PDF opens, has the same number of pages and has not lost any text.

What fits in 300 KB

300 KB usually holds an application, statement or letter of a few pages saved straight from a program. A scan is heavier, because every page is a picture, so with several pages you may run out of room. If you scan with a phone or a scanner, choose black and white or greyscale instead of colour. After compression check numbers, dates and signatures, and if something is unreadable, send fewer pages rather than lower quality.

Where you will see a 300 KB limit

A 300 KB limit may apply to applications, claims, statements and other documents sent through a portal or a form. The limit is a ceiling, so the finished file usually comes out a little smaller than 300 KB. The tool counts 1 KB as 1,024 bytes and 1 MB as 1,024 KB. If the form counts differently, or you are not sure how it counts, set a custom limit with a small margin on the main Compress PDF page.

A short document saved from an editor fits more easily than a few pages scanned at high resolution. The size of a PDF depends more on photos, scans and fonts than on the number of pages. A text-only document often fits with no visible change, while a scan may need its pages saved at lower quality. After downloading, compare important details, signatures, stamps and thin lines with the original.

What to do if the PDF will not fit in 300 KB

If the file cannot get below 300 KB, you can download the smallest version the tool managed to make and see how far over the limit it is. Then click Try a lower resolution. The file may get smaller still and the text stays selectable, but photos, stamps and thin lines will be less sharp, so look at the result before you send it.

If that is still not enough, cut down the document, not its readability. Use Delete PDF pages to drop pages the recipient does not need, keep only the required ones with Extract PDF pages, or Split PDF into several smaller files. If the recipient accepts bigger files, choose a higher limit in Compress PDF.

Privacy

All processing takes place in your browser. Your PDF is never uploaded to a server, and no data remains after you close the page.

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