Change PDF Page Size

Create a new PDF with common page size presets, centered content, and optional margins.

Browser local

Normal PDFs do not upload for this tool.

Progress aware

Large files show a working state and safe errors.

Download ready

Export a fresh PDF when processing completes.

About Change PDF Page Size

This tool processes the selected PDF in your browser and creates a separate output file only when you choose the action.

Tool details

  • Input: PDF
  • Output: PDF
  • Processing: In your browser
  • Privacy: Upload is not required for this tool

What Change PDF Page Size does

Change PDF Page Size places each original page onto a new standard-size sheet while preserving its aspect ratio and centering it within the selected margins.

Choose the right tool: This changes page dimensions, not file-size optimization. Use Compress PDF when the goal is a smaller file.

Supported workflow

  • A5, A4, A3, Letter, and Legal presets
  • Portrait and landscape orientation
  • Adjustable margins
  • Centered aspect-ratio-preserving fit

Important limitations

  • Custom dimensions, crop, bleed, and stretch-to-fill are not implemented.
  • Content is scaled to fit and may become smaller when large margins are selected.
  • The tool creates a new PDF instead of modifying the source file.

File handling and privacy

Selected files are processed in your browser and do not need to be uploaded to PDFStack servers.

Change PDF Page Size FAQ

Which PDF page sizes are supported?

The current presets are A5, A4, A3, Letter, and Legal.

Can I change orientation?

Yes. Choose portrait or landscape output sheets.

Will content be stretched?

No. Content keeps its aspect ratio and is centered within the selected margins.

Is changing page size the same as compression?

No. Page-size changes affect sheet dimensions and placement; Compress PDF targets file size.

Are files uploaded?

Selected files are processed in your browser and do not need to be uploaded to PDFStack servers.

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