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PDF Background Color Adder
Add an isolated background color behind existing PDF page drawing content.
PDF document, Background color, Physical pages
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 Add background 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
Background color: #cceeff
Physical pages:
Limitations
- Prepend an opaque color rectangle behind existing content over the selected pages’ complete MediaBox. Existing CropBox,rotation and original drawing streams are retained. Opaque white or other source objects cover this background;this does not replace every white pixel. Use six-digit hex color and physical page numbers/ranges,blank for all. 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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