PDF A4 Enlarger (margin-safe scale)
Fill A4 with smaller source pages.
Enlarge small PDFs to fill A4 without cropping. Free PDF enlarger for scaling up A5/Letter scans.
Calculator Inputs
About Enlarge to A4
Fill A4 with smaller source pages.
Any page smaller than A4 is uniformly scaled up to fill A4 and centered; A4/larger pages are untouched.
Where it is used
A5 handouts → A4, resizing scans for print.
How to use the Enlarge to A4
- PDF File — select a file (application/pdf,.pdf) — Up to 50 MB. File never leaves your browser..
- Calculate — press the Calculate button to see the result instantly above.
Formula
Scale small pages to fit A4 (97%) and center.
Examples
Example
Result: A5 → A4 (≈141% scale)
Frequently Asked Questions
- Any quality loss?
- Vector text scales cleanly; bitmap scans may soften.