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PDF Page Box Editor
Inspect or explicitly edit PDF page boxes with containment checks.
PDF document, Action, Box changes (JSON)
PDF, JSON
Browser only
Runs locally in your browser. Your files, pasted content and generated output are not uploaded. Reset clears this tool’s working data.
This tool needs JavaScript. If it does not load, refresh the page and try again.
How to use this tool
- Enter the displayed example values,or choose the local input files requested by the controls. Optional source files take precedence where labelled.
- Choose Inspect or edit boxes and inspect the complete result and any reported limitations.
- Use Download result and each companion download link to save complete outputs. Reset clears output and restores example controls.
Examples
Action: inspect
Box changes (JSON): [{"page":1,"CropBox":[10,10,100,100]}]
Limitations
- Inspect all effective Media,Crop,Bleed,Trim and Art boxes with direct-declaration names,or edit selected box declarations. Coordinates:[x,y,width,height] in unrotated bottom-left PDF points,within±14,400;positive sizes and upper edges at most14,400.1–500unique physical-page rows. Supported edit profile requires Crop inside Media and Bleed/Trim/Art inside Crop. Missing boxes retain PDF inheritance/default semantics. No content scaling,repositioning or page rotation change. Existing page contents,saved form appearances,links,attachments and supported document structures are retained. Signed PDFs,active content and unsupported preservation features refuse. Modified PDF at most100 MiB. One unencrypted PDF up to50 MiB,500pages and100,000objects. All processing stays in your browser;no target or embedded content is opened or fetched.120-second worker limit.
- Complete outputs only. Unsupported or oversized input is refused. Follow the displayed job-specific bounds and format policies.
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