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All PDF tools

Change PDF Page Size

Resize PDF pages proportionally to A4 or Letter with the margins you choose, then check the output. Free, runs in your browser, no upload.

Choose files

or drag and drop them here · PDF

Synthetic example — review the operation settings before running.

Your documents stay on this device. Tool downloads and usage statistics do not include file contents.

Local limits: Max single file: 60 MB

Files are processed in your browser. They are not uploaded to this site.

A practical guide

Choose paper, orientation and margin.

Choose a PDF and select A4 or US Letter output paper.
Set portrait or landscape orientation and the page margin.
Create the copy and inspect content scale and clipping on representative pages.

Try this example

Choose A4 portrait and a margin for a three-page source. Inspect the output pages to confirm the proportional fit preserves all visible content.

Before

Letter page

After

A4 + margins

Input and expected output for this task. Illustrative example.

Before you start: Content is fitted proportionally; this does not certify a physical measurement scale. Review margins and small text in the output.

Inspect a rendered page

Questions and answers

How do I change a PDF from Letter to A4?: Add the PDF, pick A4 as the output paper, set portrait or landscape and the margin, then create the copy. The content is fitted proportionally.
Will the content be stretched?: No. Content keeps its proportions. If the page shapes differ, some empty space can remain on the page.
Which paper sizes can I choose?: A4 or US Letter, in portrait or landscape orientation, with the page margin that you set.
Is the printed size exact?: Not guaranteed. The fit is proportional and does not certify a physical measurement scale. Check the margins and small text in the result.
Does the file leave my device?: No. Your files stay on your device and are processed in your browser.

If it did not work

It says the file is too big: For this layout the limit is 10 MiB and 200 source pages, and the result can be up to 40 MiB. Split the PDF with Split PDF and resize each part.
A signed PDF or an XFA form is refused: These files are not accepted. Resize the unsigned file, then sign the final copy.
The text looks too small after the change: A smaller target page or a larger margin shrinks the content. Reduce the margin, or choose the orientation that matches the source pages.
Bookmarks and document properties are missing: Document metadata and bookmarks are not preserved. Add them again to the new copy.
Comments or form fields look different: Comments and form fields are imprinted into the page or removed, as you choose, so their appearance may change. Check them in the result.