numcal. / PDF — PLATE 07

PDF tools that never
see your PDF.

Merge, split, reorder, rotate — done by your own browser, not our server. No upload, no limits, no signup, no watermark. Cut the internet after the page loads; it still works.

The instruments

Field notes

My files really aren’t uploaded?

Really. The PDF engine is JavaScript running in your browser tab — your file is opened from your disk into your machine’s memory, reassembled there, and saved back to your disk. Our server serves the page and the engine script, then stops being involved; you can watch the network tab, or cut your connection after the page loads and everything still works. For contracts, medical records, payslips — the files people actually need PDF tools for — that is the entire point.

What are the limits?

Your device’s memory — there is no page cap, file cap, daily quota or account. A 200-page report is nothing. A 500 MB scanned tome will make a phone sweat; a laptop handles it. If it fits in your browser, it works.

Why is every other PDF site so… like that?

Because uploads cost them server money they must recoup — hence page caps, “2 files per day,” watermarks and subscriptions. Running in your browser costs us nothing per file, so there is nothing to meter. A recent test of 15 free PDF converters found 14 with artificial limits or hidden upsells; the fix is architectural, not moral.

What’s deliberately missing?

Compression and PDF→image need every page re-rendered — a much heavier engine we’d rather not bolt on badly. Password removal we simply don’t do. If you need compression, your PDF reader’s “print to PDF” at reduced quality is the honest free option.