PandaFileKit

Compress a PDF to 150 KB

Room for a few scanned pages at readable quality. The target is already set.

PDF → PDF

Sent to server: 0 B

Requests made by this tool while processing · how to verify
Requests that could carry data
0
Engine downloads (code, models)
0
Analytics pings (no file data)
0

Counted with the browser's Performance API during the last job. It sees every request the page makes, but not what is inside them, so anything that is not a static download is counted above.

To check yourself: open DevTools → Network, clear the list, run the tool, and inspect each request. None will contain your file. You can also switch to offline after the page loads; tools whose engine is already downloaded keep working.

PresetTarget: under 150 KB

Drop PDF here

or paste, or choose a file

PDF → PDF

Choose a file, then tune the compression before downloading.

How to get a PDF under 150 KB

Add the PDF and run it. Typed documents often fit in text-safe mode with text still selectable. Scanned pages are re-rendered as images, and the compressor searches resolution and JPEG quality for the sharpest result under 150 KB. That is usually enough for two or three clean scanned pages.

Step by step

  1. 01Delete pages the form doesn't need.
  2. 02Add the PDF; the 150 KB target is set.
  3. 03Zoom in on small print in the result.
  4. 04If the target can't be reached, take the suggested size or split the file.

What 150 KB can hold

The lowest resolution the tool uses is about 60 dpi, where body text on an A4 or Letter page is still legible. At 150 KB, one scanned page can be noticeably sharper than that minimum, and a few clean pages can still fit. Busy colour scans with photos or shadows use the budget fastest.

  • Grayscale scans are much smaller than colour ones.
  • Crop scans to the paper before making the PDF.

Typed versus scanned PDFs

A PDF exported from a word processor is mostly text and fonts, which compress well without any loss. A scanned PDF is a picture of each page, so it can only get smaller by reducing that picture. The tool tries text-safe first and only re-renders pages when it has to.

How "150 KB" is counted

This page aims at 150,000 bytes or less. Upload forms disagree on what 150 KB means: some count 150,000 bytes, others 153,600 (1 KB = 1,024 bytes). A file of 150,000 bytes or less passes either rule, so you can type the limit exactly as the form writes it. The result shows the exact byte count. Windows File Explorer counts in 1,024s, so the same file can read slightly smaller there.

Questions

Will my PDF stay readable at 150 KB?

The tool won't go below about 60 dpi, so normal text stays legible. If 150 KB would need lower than that, it tells you and suggests the smallest readable size.

Can I keep the text selectable?

Yes, if text-safe optimisation alone gets under 150 KB, which is common for typed documents. Re-rendered scanned pages become images.

My PDF is already 140 KB. What happens?

It's already under the target, so there's nothing to do. Choose a smaller target if you need it smaller still.

Is my document uploaded?

No. It's processed in this browser tab and never sent to a server.

Same tool, other settings

All PDF tools