Choose how much to compress
GrovePDF gives you four levels, from "nothing you can see changes" to "as small as possible".
Keep text: compress PDF without losing quality
A lossless clean-up: unused data is removed and the file is rewritten more efficiently. Nothing on the page changes. Good for text documents that are only slightly too big.
Balanced and Smallest
The pictures inside the PDF (photos, scanned pages) are compressed again, at 150 dpi for Balanced or 100 dpi for Smallest. Text stays sharp and selectable, because only the pictures are touched. This is where big size reductions come from.
Target size: compress a PDF to 1 MB, 500 KB or 200 KB
Type the size an upload form or email allows, for example 1 MB or 0.2 MB (200 KB). GrovePDF tries the lightest compression first and stops as soon as the file fits. Only if nothing else reaches the size are pages turned into images, and the result tells you when that happened.
Why is my PDF so big?
- Scans and phone photos: each page is a large picture. Balanced usually cuts these files the most.
- Embedded fonts and high-resolution images from design programs.
- Many pages merged together. If you only need part of the file, split out the pages you need or remove pages first.
Tips for upload portals
- Use Target size with a little margin: 0.95 MB for a 1 MB limit.
- Scanned in colour but the page is black text? Grayscale PDF makes the file smaller before compressing.
- More tips in our guide: How to compress a PDF under 1 MB.