Skill

resize-page

Rescale a PDF's page size — e.g. US Letter to A4, A4 to Letter, A5 to A4, or any custom dimensions. Use when the user wants to convert a PDF between paper sizes for digital printing. Triggers on phrases like "resize this PDF to A4", "convert to letter size", "change page size".

npx claudepluginhub danielrosehill/claude-code-plugins --plugin digital-printing

Tool Access

This skill uses the workspace's default tool permissions.

Preview

Rescale every page of a PDF to a different paper size while preserving content proportionally.

SKILL.md

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Last CommitApr 27, 2026

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resize-page

Resize PDF Page Size

Rescale every page of a PDF to a different paper size while preserving content proportionally.

Inputs

Input PDF path (required).

Target size (required) — A4, Letter, A5, Legal, A3, or custom WIDTHxHEIGHT in mm or pt.

Output path (optional) — defaults to <input>-<size>.pdf next to the input.

Fit mode (optional) — scale (default, fit content to new size, preserves aspect ratio) or pad (keep original content size, add margins to reach new size).

Tooling

Prefer ghostscript (gs) — it's pre-installed on most Linux systems and handles content scaling robustly. Fall back to pdfjam (from texlive-extra-utils) for simpler page-size remapping.

Common page sizes (pt)

A4: 595 x 842

Letter: 612 x 792

Legal: 612 x 1008

A5: 420 x 595

A3: 842 x 1191

Ghostscript scale-to-fit recipe

gs -o output.pdf \ -sDEVICE=pdfwrite \ -dPDFFitPage \ -dFIXEDMEDIA \ -dDEVICEWIDTHPOINTS=595 \ -dDEVICEHEIGHTPOINTS=842 \ input.pdf

Adjust DEVICEWIDTHPOINTS / DEVICEHEIGHTPOINTS for the target size.

pdfjam alternative

pdfjam --paper a4paper --outfile output.pdf input.pdf

Workflow

Verify the input PDF exists and is readable.

Confirm gs is installed (command -v gs). If not, install via sudo apt install ghostscript.

Run the conversion.

Verify output: pdfinfo output.pdf | grep "Page size" to confirm the new dimensions.

Report back the input/output paths and the size change.

Output

Write the resized PDF and report the path. Do not delete the original.

Resize PDF Page Size

Rescale every page of a PDF to a different paper size while preserving content proportionally.

Inputs

Input PDF path (required).
Target size (required) — A4, Letter, A5, Legal, A3, or custom WIDTHxHEIGHT in mm or pt.
Output path (optional) — defaults to <input>-<size>.pdf next to the input.
Fit mode (optional) — scale (default, fit content to new size, preserves aspect ratio) or pad (keep original content size, add margins to reach new size).

Tooling

Prefer ghostscript (gs) — it's pre-installed on most Linux systems and handles content scaling robustly. Fall back to pdfjam (from texlive-extra-utils) for simpler page-size remapping.

Common page sizes (pt)

A4: 595 x 842
Letter: 612 x 792
Legal: 612 x 1008
A5: 420 x 595
A3: 842 x 1191

Ghostscript scale-to-fit recipe

gs -o output.pdf \
   -sDEVICE=pdfwrite \
   -dPDFFitPage \
   -dFIXEDMEDIA \
   -dDEVICEWIDTHPOINTS=595 \
   -dDEVICEHEIGHTPOINTS=842 \
   input.pdf

Adjust DEVICEWIDTHPOINTS / DEVICEHEIGHTPOINTS for the target size.

pdfjam alternative

pdfjam --paper a4paper --outfile output.pdf input.pdf

Workflow

Verify the input PDF exists and is readable.
Confirm gs is installed (command -v gs). If not, install via sudo apt install ghostscript.
Run the conversion.
Verify output: pdfinfo output.pdf | grep "Page size" to confirm the new dimensions.
Report back the input/output paths and the size change.

Output

Write the resized PDF and report the path. Do not delete the original.