Tools

Trim & Marks

Reduce a PDF to its trim box. Pages with an explicit TrimBox have MediaBox + CropBox collapsed to the trim rect; BleedBox and ArtBox are clamped to fit. Nothing is uploaded — runs entirely in your browser.

Scope: a geometry tool for digital and short-run print — it rewrites PDF page boxes (TrimBox / CropBox / MediaBox) and draws simple crop marks. It is not a prepress preflight: it doesn't create or validate PDF/X-4, convert color, or manage ICC profiles, and its marks are plain keylines, not registration-ink marks with overprint. For offset or commercial print with strict prepress requirements, use a dedicated prepress tool.

Source PDF

Action

Reduce to trim Add crop marks

Mark color

Auto-detect RGB CMYK

Auto reads /OutputIntents then sniffs the content streams. Falls back to RGB if undetectable.