Free PDF Tool
PDF Page Size
Convert to A4 Free
Convert all pages of a PDF to a standard size — A4, Letter, A3, or Legal. Content is scaled proportionally to fit the new dimensions. Ideal for standardising mixed-size PDFs, meeting portal upload requirements, or ensuring consistent printing. Runs entirely in your browser.
Drag & drop your PDF here
All pages will be converted to A4 (210×297mm)
Grow your business on social media — without hiring an agency
AI-generated posts in 30 sec · 10 Indian languages · Real MP4 videos
Common Uses
🖨️ Printing on A4
US Letter documents print incorrectly on A4 printers — convert first for proper margins.
📤 Government Portals
Many Indian government portals require A4 size PDFs for document uploads.
📚 Binding & Reports
Standardise all pages to A4 before printing and binding multi-source reports.
📋 University Submissions
Academic submissions in India require A4 format — convert imported documents easily.
Frequently Asked Questions
Which page sizes are supported?
A4 (standard India/Europe), Letter (US), A3 (large format), and Legal (US legal documents).
What happens to the content when page size changes?
Content is scaled proportionally to fit the new page size and centred. Nothing is cropped.
Will the PDF quality change?
Slightly — resizing involves re-rendering the pages, which may reduce sharpness at very large scale factors. For small size changes (e.g., Letter to A4), the difference is negligible.
Why do I need to change PDF page size?
Common reasons: printing on A4 when document was Letter size, submitting to a portal with A4 requirement, standardising mixed-size PDFs for binding.