Resize PDF to A3
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Resize PDF to A3 in seconds. Each page is scaled to fit portrait A3, 297 by 420 millimeters. Free, no sign-up, and your file never leaves your device.
Stays on your device
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How to resize a PDF to A3
Resize PDF to A3 puts every page of your PDF on a portrait A3 sheet, which is 297 by 420 millimeters. There is no paper choice on this page. It is always A3. Each page is scaled to fit inside the sheet and centered. The page keeps its shape, so a large page gets smaller and a small page gets bigger. Nothing is cropped. If a page has a different shape, you get blank paper above and below it or at the sides. Pages that were saved turned sideways are measured the way they show. A page with no contents becomes a blank A3 sheet. Form fields are not copied to the new sheets. You get one PDF named a3.pdf.
Your file stays on your device. It is never uploaded. When you close the page, the copy in your browser is cleared. The page never asks for your email. Your browser saves the result as a3.pdf. That makes it safe for contracts, bank statements, medical records and other private files.
Resize PDF to A3 is free, with no account, no daily limit and no page limit. Very large files depend on your device's memory. There is nothing to install.
If the file is empty, damaged or not a PDF, try another copy. If the PDF has no pages, there is nothing to resize. Password-protected? Unlock it first with Unlock PDF. This tool never guesses a password. For Letter or A4, use Resize PDF. For US Legal, use Resize PDF to Legal.
How to use this tool
- Choose your file. It never leaves your device.
- Pick a setting, if the page has one.
- Download your new file.
Common questions
Will resizing to A3 crop or stretch my pages?
No. Each page is scaled to fit inside portrait A3 and centered. Its shape stays the same, so a wide page leaves blank paper above and below. A small page scales up, and a large page scales down. Nothing is cropped. For Letter or A4, use Resize PDF.
Is my PDF uploaded when I resize it to A3?
No. Your file stays on your device and is never uploaded. You get one file named a3.pdf.
Can I still select the text after resizing to A3?
In most files, yes. The tool places each original page on the new sheet without turning it into a picture, so text you could select before stays selectable.
Is resizing a PDF to A3 free?
Yes, it's free. No account, no daily limit, no watermark.