Tools
Trim & Marks
Trim a PDF to its trim box or to the edges of its art, or add crop marks. Trimming to the edges of the art removes the white space around it, and either way the art keeps its exact size and position.
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.
Action
Mark color
Auto reads /OutputIntents then sniffs the content streams. Falls back to RGB if undetectable.
Margin kept on every side of the painted area. 0 trims tight to the ink. Padding never grows the page past the area the file already displays. Each page is rendered in your browser to find its art; a page-sized background object counts as art and is reported as nothing to trim.