Change PDF page size from A4 to Letter, or any other size
To change PDF page size, open the file in Publish Media Software (PublishMedia), switch the editor to Advanced mode, open Page Setup and pick a size such as US Letter or A4, then check that text and pictures still sit well and export (paid). This changes the page's dimensions, not the file's size in megabytes; PublishMedia doesn't compress PDFs. Viewing is free.
Letter is 8.5 × 11 in, Legal 8.5 × 14 in, A4 210 × 297 mm.
Changing page size and exporting need a paid plan; opening and viewing PDFs is free.
- Page Setup✓ Ready
- Current sizeA4
- New sizeUS Letter
What changing the page size of a PDF involves
Switch A4 to Letter
Make a European document fit US paper and printers.
Go from Letter to A4
Ready a US file for printing in another country.
Pick another size
Page Setup lists other sizes besides Letter and A4.
Refit text and pictures
Nudge pieces back inside the margins after resizing.
Check every page
Print Preview shows how each page lands on paper.
Export the new size
Paid plans save the resized pages as one PDF.
Did you mean file size, or another page job?
"Size" can mean the page or the megabytes. These pages cover the nearby jobs.
Need a smaller file?
PublishMedia doesn't compress PDFs. This guide shows which editors do which jobs, compressing included.
Compare PDF toolsHow do I change the page size of a PDF?
Open the PDF in a page editor, choose the new size, check the layout and export. In Publish Media Software (PublishMedia), switch to Advanced mode, open Page Setup and pick Letter, A4 or another size (paid). Print settings such as fit to page only scale a PDF onto different paper; the file itself keeps its old size.
Three ways to start a page-size job
Resize an existing PDF, or begin at the right size from the start.
Open the PDF to resize
Drop it on the start screen; each page opens as an editable page at its current size.
Up to 250 MB; viewing costs nothing
Open your PDFBegin on a template
Start a flyer or program on a print-ready template rather than stretching an old layout.
See templatesSet the size first
Choose Letter, A4 or another size before adding a single text box.
Start a blank documentWhere page size lives in the PublishMedia editor
Page size sits in Advanced mode, alongside the tools you'll use to tidy the layout afterward.
Advanced mode
Page Setup sits in Advanced mode, so switch the editor to it before you resize pages.
Page Setup
Choose US Letter, A4 or another size for the document.
Movable text and pictures
Drag and resize any piece that ended up too close to an edge or left a gap.
Print Preview
Page through the resized document as it will print before exporting the PDF.
Making a weekly bulletin at a set size?
A template avoids refitting an old layout every time the paper changes.
Church bulletin maker
Print-ready bulletin layouts you fill in each week, then export as a PDF on a paid plan.
Other templates
How to change PDF page size in four steps
Pick the new size first, then tidy the layout before you export.
Upload the PDF
Sign up at publishmediasoftware.com with no credit card, then drag in the PDF whose pages need a new size.
Open Page Setup
Switch the editor to Advanced mode and open Page Setup (paid plans).
Choose the new size
Pick US Letter (8.5 × 11 in), A4 (210 × 297 mm) or another size, then move any text box or picture that now sits too close to an edge.
Check the edges, then export
Look over each page in Print Preview for anything near the edges, then export the PDF at its new size.
6 ways to change a PDF's page size
Some tools change the page itself; others only scale it while printing. Each card says which.
As of October 2026, a PDF's page size, for example A4 (210 × 297 mm) or US Letter (8.5 × 11 in), can be changed two ways: by setting the document to the new size and refitting its content, or by scaling each page onto different paper. Publish Media Software (PublishMedia) does the first in a browser through Advanced mode › Page Setup on paid plans ($9.99 a month or $99 a year), paid Adobe Acrobat has page tools, and LibreOffice Draw changes the page format at no cost. Microsoft Print to PDF, the Mac print dialog and Sejda scale pages instead. None of these is the same as reducing file size.
Publish Media Software (PublishMedia)
In any modern browser on Windows, Mac, Chromebook, Linux or iPad, switch to Advanced mode and pick a size in Page Setup, then move content to fit. Costs $9.99 monthly or $99 yearly. Limit: it doesn't shrink file size.
Adobe Acrobat
Paid Adobe Acrobat's page tools can crop pages and change their dimensions, alongside in-place text editing, OCR and forms. Available for Windows and Mac and in a browser. Limit: the no-cost Acrobat Reader has no page-size tools.
Microsoft Print to PDF (Windows)
Built into Windows 10 and 11 at no cost: print the PDF from Edge, choose Microsoft Print to PDF, pick a new paper size and a fit-to-page scale. Limit: content is scaled, not laid out again, so margins and text size change.
Preview on a Mac
Comes with every Mac: choose File › Print, set a new paper size and scaling, then save as PDF from the print dialog. Limit: Mac only, and it scales the existing page rather than letting you rearrange what's on it.
LibreOffice Draw
Costs nothing on Windows, Mac and Linux: open the PDF, set a new paper format in the page properties, then use File › Export as PDF. Limit: Draw usually splits PDF text into a separate box for each line and substitutes fonts you don't have.
Sejda
A browser-based PDF tool with a resize option that changes page dimensions or adds margins on any computer. Limit: the free tier has usage limits, and it treats each page as a whole rather than letting you move what's on it.
What a page-size change costs
Opening and viewing a PDF is free; free-plan files are removed after 7 days, with an email reminder first. Page Setup, layout changes and print-ready PDF export come with All-Access at $99 a year (Recommended) or Monthly at $9.99, cancel anytime. Neither plan compresses PDFs, so if you need a smaller file in megabytes, use a tool built for compressing.
Free Starter
$0
Open and view unlimited Publisher, Word, Excel, PowerPoint, PDF, and picture files free — stored for 7 days, then deleted automatically. Editing and export are on the paid plans.
Start freeAll-Access
$99/yr
Everything unlocked — full editing, every template in the library, and unlimited storage.
Monthly
$9.99/mo
All the same features, billed monthly — cancel anytime.
PDF page size questions
What's the difference between page size and file size?+
Page size is the physical dimensions of each page, such as US Letter at 8.5 × 11 inches or A4 at 210 × 297 millimeters; file size is how much storage the PDF takes, in kilobytes or megabytes. PublishMedia changes page size. It doesn't compress PDFs, so for a smaller file use a compressing tool such as Smallpdf, iLovePDF or Adobe Acrobat.
What are the steps to change a PDF from A4 to Letter?+
Open the PDF in PublishMedia, switch to Advanced mode, open Page Setup and choose US Letter (paid). A4 is 210 × 297 mm, a little narrower and taller than Letter's 8.5 × 11 in, so check that nothing near the bottom edge gets cut off and that the side margins still look even before you export.
Why does my A4 PDF print with cut-off edges in the US?+
A4 pages are about 0.7 inch taller and a little narrower than US Letter paper, so a printer loaded with Letter either trims the bottom or shrinks the page. Choose a fit-to-page option in the print dialog for a quick fix, or change the PDF's page size to Letter and refit the layout for a clean result.
What's the difference between Letter, Legal and A4?+
US Letter is 8.5 × 11 inches and is the standard office paper in the United States and Canada; Legal is the same width but 14 inches long; A4, at 210 × 297 millimeters (about 8.27 × 11.69 inches), is the standard in most other countries. Pick the size of the paper your reader or printer will use.
Is printing with fit to page the same as changing the page size?+
No, a fit-to-page print setting shrinks or enlarges each page to fit the paper in the printer and leaves the PDF itself unchanged. Changing the page size gives the PDF's pages new dimensions, so every viewer and printer starts from the new size rather than the old one.
Where is Page Setup in PublishMedia?+
Page Setup is in Advanced mode: switch the editor to Advanced mode, then open Page Setup to pick the page size. Changing it is part of the paid plans; the free plan opens and shows the document so you can look at its pages first.
Can I change the page size of a PDF on a Chromebook or iPad?+
Yes, because PublishMedia runs in Chrome on a Chromebook and in Safari on an iPad, the same Advanced mode and Page Setup steps apply; on an iPad, turn it to landscape for the most room. A phone’s browser runs the same editor too, with Advanced mode one tap away in the More (⋯) menu.
Do I need to change the page size before sending a PDF to a print shop?+
Only if the shop asks for a size your PDF doesn't match. Tell the shop the finished size you want and send a PDF already set to it; if the file is A4 and you want Letter prints, change it in Page Setup and check the margins first. Ask the shop about its margin needs before exporting.
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