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Fix Page Size

docs/tools/fix-page-size.md

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Fix Page Size

PDFs assembled from multiple sources often end up with mismatched page sizes -- some Letter, some A4, some completely non-standard. This tool forces every page to a single target size, scaling content to fit or fill as needed.

How It Works

  1. Upload a PDF file.
  2. Select a Target Page Size from the dropdown (A4, Letter, Legal, A3, A5, Tabloid, or Custom).
  3. Choose an Orientation -- Auto keeps each page's original orientation, or you can force Portrait or Landscape.
  4. Pick a Content Scaling mode: Fit (preserves all content, may add margins) or Fill (fills the page, may crop edges).
  5. Optionally set a Background Color for any added margins.
  6. Click Fix Page Size.

Options

  • Standard sizes: A4, Letter, Legal, A3, A5, Tabloid
  • Custom dimensions: Enter width and height in inches or millimeters
  • Orientation: Auto, Portrait, Landscape
  • Scaling mode: Fit or Fill (Crop)
  • Background color: Any color for margin padding

Use Cases

  • Normalizing a merged PDF where pages came from different scanners
  • Converting a US Letter document to A4 for international distribution
  • Preparing print-ready PDFs that require a consistent trim size
  • Fixing pages that are slightly off-standard (e.g., 8.49 x 11.02 inches instead of 8.5 x 11)

Tips

  • Use Fit mode to guarantee no content is lost. Fill mode looks cleaner but can clip edges.
  • Check your output with the Page Dimensions tool to confirm every page matches the target.
  • White is the default background color; switch to a dark color if your document has dark margins.