PDF Page Size Converter
Change a PDF’s page size — A4 to Long bond paper (8.5 × 13), Letter to A4, Legal to Letter — with the content scaled to fit. Free, in your browser, no upload.
About PDF Page Size Converter
A PDF made for A4 prints badly on Long bond paper and vice versa: the printer either shrinks it, leaving fat margins, or clips the edges. This free PDF page size converter re-lays every page onto the paper you actually have — Philippine Long bond paper (8.5 × 13 in), A4, Letter / Short bond, Legal, A3, A5 or any custom size — scaling the content to fit (or fill) and centring it. The result is a normal PDF you print at 100% with no surprises, and it also fixes PDFs with mixed page sizes.
Everything happens in your browser: the file is never uploaded, so contracts, PDS forms, school modules and government forms stay private, and it works on a phone. Text stays vector-sharp because pages are embedded and scaled rather than rasterised. Typical uses: converting a downloaded A4 form to Long bond for a Philippine office, resizing a Legal-size US document to Letter, fitting a Letter PDF onto A4 for a European printer, or shrinking an A3 poster to A4.
How to change a PDF’s page size
- 1Drop your PDF into the upload box. The tool shows the page count and the current page size (for example "A4" or "Letter").
- 2Choose the new page size: Long bond paper (8.5 × 13), A4, Letter / Short, Legal, A3, A5 or a custom size in millimetres.
- 3Keep Orientation on Auto so landscape pages stay landscape, and keep Content scaling on Fit (nothing is cut off). Choose Fill only if you would rather crop edges than have margins.
- 4Click Convert. Each page is scaled and centred onto the new size in your browser.
- 5Download the PDF and print it at 100% / Actual size on the matching paper.
Frequently asked questions
How do I convert a PDF to Long bond paper size?
Upload the PDF, choose "Long bond paper / Folio — 8.5 × 13 in" as the new page size, keep Fit and Auto orientation, click Convert and download. Then print at 100% with Long bond (8.5 × 13 in, sometimes called Folio or "Legal 13") selected in the printer dialog.
Is Long bond paper the same as Legal?
No. Philippine Long bond paper is 8.5 × 13 inches (215.9 × 330.2 mm). US Legal is 8.5 × 14 inches. Both are options here; pick Long for Philippine offices and schools, Legal for US legal documents.
Will the text and images stay sharp?
Yes. Pages are embedded and scaled as vector content, not converted to pictures, so text stays crisp at any zoom and the file size stays similar to the original.
What is the difference between Fit and Fill?
Fit scales the page down or up until the whole page is inside the new size, keeping proportions, and centres it — you may get small margins when the shapes differ (A4 is narrower than Long). Fill scales until the page covers the new size completely, cropping whatever overflows. Fit is right for documents; Fill suits full-bleed images.
Can I resize only some pages, or pages with different sizes?
The converter applies the new size to every page, which is exactly what fixes a PDF with mixed sizes. To resize only some pages, split the PDF first with the PDF Splitter, convert the part you need, and merge it back with the PDF Merger.
Why does my PDF still print with margins?
Check two things: the printer dialog should be set to 100% / Actual size (not "Fit to printable area"), and the paper size in the dialog should match the size you converted to. Most printers also cannot print the outer 3–5 mm, so content very close to the edge is normal to lose.
Is my PDF uploaded?
No. The conversion runs entirely in your browser using pdf-lib; the file never leaves your device, and there is no sign-up or watermark.
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