Compress PDF to 3MB Online — Free
3MB is the upload ceiling on a lot of application portals: scanned certificates, ID copies, signed forms and multi-page CVs all run into it. A phone scan of five or six pages lands at 4–8MB, which is exactly the file this page exists for.
The balanced setting is pre-selected. It brings a typical scan down by 60–80% by re-encoding the page images, while the text layer is left untouched — every word stays searchable and selectable.
Compress your PDF to 3MB now
Drop your PDF file here or click to browseMaximum file size: 100MB
How to compress a PDF to 3MB
- Drop your PDF below. Anything up to 100MB is accepted.
- Balanced compression is pre-selected — the right trade for scanned pages that still have to be read.
- Compress. A scan of a few pages finishes in seconds.
- Read the new size on the result screen and download. If it is still above 3MB, run it once more on the strongest setting or split the file.
Why Confileo for a 3MB limit
- The result screen shows the original and the compressed size side by side, so you know it fits before you download.
- Text stays text — no rasterised pages, no blurred scans.
- No watermark on a document you are about to submit.
- Encrypted transfer and automatic deletion after processing.
Compress PDF to 3MB — FAQ
A phone scan or a PDF full of photos usually loses 60–80% on the balanced setting, so an 8–10MB scan typically lands under 3MB in one pass. A file that is already text-only rarely shrinks much — but it is rarely above 3MB to begin with.
Yes. Compression re-encodes the images inside the file; the text layer is copied as-is. On a scan the page image is resampled, and the balanced setting keeps characters sharp enough to read and to OCR.
Run it again on the strongest setting, or split the document and upload it in parts. A 40-page colour scan has a real floor that no setting can beat, because every page carries its own image.
Some portals measure the file after encoding it for upload, which adds a few percent. Aim for about 2.5MB to leave a margin, or use the 2MB target if it keeps refusing.
Yes. The file is encrypted in transit, processed, then deleted automatically. We never store or share your documents, and no account is needed.