How to compress a PDF to 1 MB
- 1
Click Choose files or drop your PDF into the box.
- 2
Check that Maximum file size is set to 1 MB (you can pick another limit).
- 3
Click Convert. TurboConvert tries several compression levels and keeps the best-looking result under 1 MB; it downloads automatically.
Why 1 MB?
1 MB is the classic limit of many administrative portals and online forms, and a comfortable size for email attachments that must open quickly on a phone. When a website rejects your file for being too large, the usual advice is to “compress it” — but most compressors give you a single result and leave you guessing whether it will fit. Here you set the limit, and the tool aims for it.
How the size target is reached
A PDF is made of text, fonts, vector drawings and images. Text and fonts compress extremely well, so they rarely matter. Images — especially scans and photos — are what make a PDF heavy. To reach 1 MB, TurboConvert lowers the resolution of the images step by step (300, 150, 96, 72 then 50 dpi) and stops at the first result that fits. You keep the sharpest version possible for that size.
Tips for small PDFs
- Most scanned documents reach 1 MB at the recommended level. If yours doesn’t, it probably has many pages: split it and send only what is asked.
- Photos of documents taken with a phone are much heavier than scans: if you can, use a scanner app that crops and converts to black and white.
- Need several files under the limit? Drop them all at once — each is compressed separately and you can download everything as a ZIP.
- Want to choose the compression level yourself instead? Use the regular Compress PDF tool.