Compress a PDF to 1 MB
One megabyte is the most forgiving common limit: generous for text documents, reachable for most scans, and almost always enough for a form.
Compress to Size — free and local
Takes your upload limit in KB or MB and finds the best quality that still fits under it.
What 1 MB really buys you
A page of pure text costs 5–20 KB, so a 300-page report can fit in 1 MB without touching its quality. A scanned page at 300 DPI costs 1–3 MB, so a three-page scan needs real compression to land there.
That gap is why “is 1 MB achievable?” has no single answer. Measure first — the compressor does it for you — then decide whether to compress the document or trim it.
The settings that get you there
For a scan up to about ten pages, 1 MB usually works at 150–200 DPI with JPEG quality around 0.6 — small print stays readable, signatures stay verifiable. For a 50-page scan, 1 MB means roughly 20 KB per page, which is thumbnail quality: the honest move there is to submit fewer pages.
The tool reports the resolution it actually used, so you can judge whether the result is fit for its purpose rather than trusting a label.
Questions
Will 1 MB look bad?
For text documents, no — it is lossless enough to look identical. For scanned photos, expect 150–200 DPI, which is fine on screen and acceptable in print.
Can it go lower than 1 MB?
Yes, the target is an input. 100 KB, 500 KB, 2 MB — whatever your form requires.
Does it work on a phone?
Yes, though a very large scan may run out of memory. A desktop browser handles 30 MB files comfortably.
Related
SlimPDF runs every tool in your browser. No file is ever uploaded, stored or shared.