zerouploads

Compress a PDF to 100 kB, 200 kB or Any Size

Shrink a PDF to the size an upload form allows. It keeps the sharpest version that fits, and the file never leaves your device.

  • Unlimited
  • No signup
  • Private
  • Works offline

Compress a PDF

The sharpest version that fits. Pages are re-drawn as pictures only if the file is too big.

kB
Add a PDF to start.

How it works

  1. 01

    Add your PDF

    Drop it in or pick it. It stays in this tab and is never uploaded.

  2. 02

    Pick the size

    Tap 100 kB, 200 kB, 500 kB or 1 MB, or type the limit the form gives.

  3. 03

    Compress and download

    The footer shows the new size. Download the file, then open it to check.

How a PDF gets to 200 kB

Upload portals for exams, jobs and visas often cap a PDF at 100 kB, 200 kB or 500 kB. A scanned certificate is often several MB, because a scanner saves every page as a large picture.

This tool draws each page again as a smaller picture and saves it as a JPG. It tries a sharp version first. If that is too big, it tries a smaller, softer one, halving the gap each time, and keeps the sharpest version that fits.

If your PDF is already under the size you pick, you get it back unchanged.

Sizes
100 kB, 200 kB, 500 kB or 1 MB in one tap, or any number.
How
Pages re-drawn as JPG pictures at 150 down to 50 dpi.
Text
Not selectable after compressing. Small files are kept as they are.
Uploads
None. The PDF is compressed in this tab.

What you give up

A compressed page is a picture of the page. You can read it and print it, but you can no longer select or search its text. Links and form fields stop working too.

For a scan, nothing is lost, because a scan was only pictures to begin with. For a typed document, keep the original as well, and upload the small one only where a size limit forces it.

Some files cannot reach a tiny size. In our test, three scanned A4 pages came to 84 kB at 85 dpi. A long file can run out of room. Then the tool hands back the smallest version it could make, and says so.

Frequently asked questions

How do I compress a PDF to 200 kB?
Add the PDF, tap 200 kB and press Compress. The tool finds the sharpest version that fits. Then press Download PDF.
Why can I not select the text any more?
Because each page is now a picture of the page. Pictures are what can be squeezed to a small size. Keep your original if you need the text.
Will it be exactly 200 kB?
It will be at or under 200 kB. Some forms count a kB as 1,000 bytes and some as 1,024, so the tool aims at 200,000 bytes, which passes both.
What if it cannot get small enough?
You still get the smallest version it could make, and the footer says it is over. Split the PDF, or take out pages the form does not need.
Is it still readable?
Usually, yes. The sharpest setting is 150 dpi, which prints well. Small sizes on long files drop toward 50 dpi, so open the result and check it before you upload.
Does it work with a password-protected PDF?
No. Unlock the PDF first with its password, then add it here.
Is my PDF uploaded?
No. It is read, re-drawn and saved in this browser tab. Nothing about it is sent to a server.
Browse all PDF tools