PDF Page Size Converter Free — A4, Letter, A3, Legal & Custom
Resize PDF pages to A4, Letter, A3, Legal, or any custom size free online. Free PDF page resizer — all standard paper sizes supported. No signup.
When to Change PDF Page Size
Page size conversion is needed in many print and publishing workflows:
- Converting US Letter PDFs to A4 for international printing
- Standardizing mixed page sizes in multi-source PDF documents
- Resizing PDFs for booklet printing (A5 from A4 content)
- Preparing PDFs for large-format printing (A3, Tabloid, poster)
- Converting legal-size documents to standard Letter or A4
- Adjusting PDF page dimensions for upload to print-on-demand services
- Resizing presentation PDFs from widescreen to A4 for distribution
- Preparing PDFs for specific envelope or card stock dimensions
How to Change PDF Page Size — Step by Step
- Upload Your PDF: Drag and drop your PDF or click to browse. All PDF versions and page sizes are supported.
- Select Target Size: Choose a standard size (A4, A3, A5, Letter, Legal, Tabloid) or enter custom width and height in mm, cm, or inches.
- Apply & Download: Click 'Resize Pages'. All pages are resized to the target dimensions. Download your reformatted PDF.
Frequently Asked Questions
Can I set a custom page size?
Yes — enter any custom width and height in mm, cm, or inches. This is useful for unusual print formats like custom card stock, posters, or specific publishing dimensions.
Does resizing affect PDF text quality?
No — PDF text is vector-based. When scaling a PDF up or down, text remains crisp and perfectly readable at any size.
Can I resize only specific pages in a PDF?
Yes — use the page range selector to apply the new size only to selected pages, leaving other pages unchanged.
What is the difference between A4 and Letter sizes?
A4 (210 × 297mm) is the standard paper size in Europe, Australia, and most of the world. Letter (8.5 × 11 inches / 216 × 279mm) is the North American standard. A4 is slightly taller and narrower than Letter.
Will the PDF still be searchable after page resizing?
Yes — resizing page dimensions does not affect the text layer. The PDF remains fully text-searchable and selectable after page size conversion.