Compress PDF to 1MB
1 MB is the most common upload limit for scanned contracts, invoices and ID documents. This tool compresses your PDF just enough to fit under it, keeping as much quality as possible — on your device.
100% private: files are processed in your browser and never uploaded to any server.
How it works
- Drop your PDF into the box — the 1 MB target is preset.
- The tool compresses with the gentlest settings that fit the limit.
- Download the result and check the final size next to the file.
The most common cap of all
1 MB is probably the single most common upload limit online. It is the default ceiling for countless email systems, HR portals and application forms, because it comfortably holds a typical scanned document while keeping storage in check. If you are not sure which target to pick, 1 MB is usually the safe bet — large enough for good quality, small enough to pass almost everywhere.
Best quality of the size presets
Because the budget is larger, a 1 MB target keeps noticeably more detail than 100 KB or 500 KB. The tool always uses the gentlest compression that still fits, so a scanned contract or a photo-heavy report usually comes out looking close to the original. This is the target to choose when readability and appearance matter and the portal allows up to a megabyte.
Ideal for scanned documents
Scans are where 1 MB shines. A multi-page scanned document that started at 8 or 10 MB almost always drops under 1 MB while staying crisp, because scans are mostly image data that re-encodes very efficiently. The tool rasterizes and searches settings automatically to guarantee the target; as with the other presets, that means the output text is part of the page image rather than selectable. Everything runs locally, so your scans are never uploaded.
When a document is simply too long for 1 MB
There is a limit to what any target can do. A very long or highly detailed document — dozens of dense pages, or high-resolution photographs on every page — may not reach 1 MB without the quality dropping further than you would like. When that happens, the better move is usually to split rather than crush. Use the Split PDF tool to separate out the pages the recipient actually needs and compress just those, or break a long report into a few smaller files that each fit comfortably. A clean 1 MB extract almost always serves better than a barely-legible 1 MB version of the whole thing.
Frequently asked questions
My scanned PDF is 8 MB. Will it reach 1 MB?
Almost always, yes. Scans compress very well: most of the size is image data that can be re-encoded much more efficiently while staying perfectly readable.
Is quality better at 1 MB than at smaller targets?
Yes. The tool always uses the gentlest compression that fits the limit — a 1 MB target usually keeps pages looking close to the original, unlike 100 KB.
Will the text remain selectable?
No — guaranteed size targets require rasterizing pages. If keeping selectable text matters more than the exact size, use the Compress PDF tool in smart mode instead.
Is my document uploaded?
No. All compression happens inside your browser; your files never leave your device.