Learning Portfolio PDF Compressor

Automatically tune resolution and quality to bring a learning-portfolio PDF below 4 MB with upload headroom.

Local processingOriginals preservedDirect export

Tool workspace

Processing stays in this tab
The output target is 3.8 MB to remain below the 4 MB limit.
Source size
4 MB
Hard limit

The tool first tries to preserve text, then lowers resolution and quality only when required.

Automatic compression policy
  1. Repack and clear standard metadata
  2. If still above 4 MB, rasterize and measure repeatedly
  3. Target 3.8 MB to leave upload headroom
Ready

How to use

  1. Add the complete learning-portfolio PDF.
  2. Select Compress below 4 MB. The tool preserves text first, then progressively reduces DPI and JPEG quality only as needed.
  3. After the result reports Below 4 MB, review every page before downloading and uploading.

Privacy

Input and files are processed in the current browser tab. Mingmist does not receive the content unless you independently share the result elsewhere.

Limitations

Meeting a hard size limit may require rasterizing pages and reducing resolution. This removes searchable text, links, forms, bookmarks, and some accessibility information. Extremely long documents may still be unable to meet 4 MB at readable quality.

FAQ

Will it really be below 4 MB?

The tool targets 3.8 MB and progressively reduces size. Ordinary learning-portfolio documents should meet the limit; extremely long documents report the smallest result rather than claiming success.

Why target 3.8 MB instead of exactly 4 MB?

Upload systems may calculate size differently, so roughly 0.2 MB of headroom is reserved.

Will searchable text disappear?

The tool first tries to preserve text. Pages are rasterized only if structural repacking cannot meet the limit, and the result clearly reports this.

What should I inspect after compression?

Review small text, charts, QR codes, portfolio images, and page orientation, and keep the original file.