Convert Letter PDF to A4
Files never leave your deviceDrop a PDF made on US Letter paper and download the same document on A4 pages. Each page is scaled by about 97% to fit the narrower A4 width and centred, so nothing is cut off, and the text stays as sharp, selectable vector text.
How to use it
- Drop one or more PDFs. A4 is already selected; switch to Letter or Legal if you need those.
- Optionally add a 6 mm margin for printers that cannot print to the edge, or choose Shrink only.
- Check the page sizes and scale in the report, then download the resized PDF.
Details
- Sizes
- Letter 8.5×11 in (215.9×279.4 mm, 612×792 pt). A4 210×297 mm (595×842 pt)
- Scale
- Letter to A4: about 97.3%, limited by the width, with a small band at the top and bottom
- Kept
- Text (selectable), vector graphics, images at their original resolution, page order, landscape pages stay landscape
- Not kept
- Links, comments, fillable form fields and digital signatures. The page warns before you download
- Library
- pdf-lib, loaded on demand; runs in the browser
Questions
Are my files uploaded?
No. The page loads its code once, then reads and processes your files inside the browser tab. Nothing is sent to a server; you can confirm it in your browser's network panel while a file converts.
Will the content be cropped?
No. Each page is scaled to fit inside A4 and centred. Letter is 6 mm wider and 18 mm shorter than A4, so the page shrinks to about 97.3% and gains a thin white band at the top and bottom.
Can't I just print Letter on A4 with Fit to page?
You can print it that way, but the file is still Letter. If a portal, a print shop or a colleague in Europe or Asia needs an A4 file, resize it here.
Does it work for scanned PDFs?
Yes. A scanned page is an image inside the PDF, and it is scaled the same way without re-compression.
What happens to fillable forms and signatures?
Form fields stop being fillable and a digital signature is no longer valid, because the pages are redrawn. The page warns when a file has them. Fill in the form first, and send signed documents unchanged.