PDF Toolkit · Editing

Compress PDF to 300 KB,
right in your browser.

Reduce a PDF to 300KB or less. The target is already filled in, so add your file and let the tool find a version that fits.

Target 300 KB preset

Text kept when possible

Runs in your browser

Browser workspace

Review limitations

Check supported output

Select Compress PDF to 300 KB file

or drag and drop here — up to 25MB free

Accepts: .pdf

Before you start

Shrink a PDF to 300 KB or less for an upload limit, keeping text where possible.

Workspace availability

This page has a wired workspace. Availability of external services and individual output cases must still be checked.

Before you start

Supported input selection: .pdf.

Review the result

This upload workspace processes the selected files in the browser. Review the downloaded output before use.

Use compress pdf to 300 kb in three steps

Select supported files

Choose files using the input control or drag and drop.

Set your options

Review the selected files and available controls before processing.

Review the output

Download only a completed result and check it before use.

What 300KB usually holds

300KB is a comfortable size for a short colour scan of two or three pages, or four to six grayscale pages at a moderate resolution. A couple of phone photos of documents, turned into a PDF, can often fit once their photos are recompressed.

It is still tight for long reports with many photos, or for scans made at 600 DPI. Those may need trimming, a lower scan resolution or Strong mode.

Where you meet a 300KB limit

Some application forms and document upload sections use limits around 300KB for items such as identity proof, educational documents or experience letters. Follow the number on the form you are filling in, as limits are set by each site.

How compression is applied

The tool tries the text-keeping mode first. It lowers the quality and resolution of the images inside the PDF one step at a time until the file is under 300KB. Text stays selectable and links keep working.

If it cannot fit, you are offered Strong mode, which makes each page an image. That is smaller, but you lose selectable text, links and form fields. It is your choice. If 300KB still cannot be reached, you are told and given the smallest result.

Tips for 300KB

Photograph or scan pages flat and well lit, so the compressor is not wasting space on shadows and noise. Crop each page to its edges. If colour is not needed, use grayscale. Put only the requested documents in the file.