Find mixed page sizes, fit every page onto A4, A3, Letter, Legal, or a custom format, and choose portrait or landscape before downloading.
Select PDFs to inspect their page sizes.
Artwork is fitted proportionally and centered. The output may omit interactive form fields, links, and annotations; keep your original PDF.
A PDF can contain pages with different physical dimensions. A report assembled from scans, forms, and exported slides might switch between A4, US Letter, landscape, and unusual custom sizes without making that obvious in a viewer. Those differences can cause awkward printing, clipping, or inconsistent margins. BFOTKit lets you inspect each page and change PDF page size to one selected paper format. It creates a separate PDF for each source document, preserving the original files on your device.
Select one or more PDFs, or drag them into the file area. The tool lists each page’s dimensions in millimeters and labels common paper sizes. Review the report, select an output format, and choose whether every page should be portrait, every page should be landscape, or each page should keep its source orientation. Click Download resized PDF to create the result. A single input downloads as a PDF. If you selected several files, the results download together as a ZIP with a separate resized PDF for each input.
The preset formats are A4, A3, US Letter, and US Legal. A4 is common for office documents in many countries; Letter is common in the United States. A3 provides a larger sheet, while Legal is longer than Letter. Selecting one preset changes the page canvas of every output page to that physical size. The tool fits the source artwork within the new page while keeping its proportions. If the source and target shapes differ, blank space remains around the artwork instead of stretching it.
Choose Custom size when a preset does not match your printer, stationery, or finished document. Enter the short side and long side, then select millimeters or inches. You can choose portrait or landscape for every page, or match the orientation of each source page. A custom format is useful for booklets, labels, forms, and specialty paper. Check your printer’s supported paper dimensions before printing: changing a PDF’s page size does not make an unsupported sheet fit your printer tray.
When you combine PDFs from different sources, a page-size report helps you find the mismatch before printing. The table shows file name, page number, detected size, and dimensions. Choose a target paper format to resize all pages of each PDF in the batch. To make every output page’s width and height identical, set a fixed portrait or landscape orientation. Match each source page if you want to preserve its orientation while standardizing the underlying paper format.
This change PDF page size tool runs in a modern browser on desktop, laptop, tablet, or phone, subject to available memory. You do not need to install a PDF editor or create an account. Files are processed locally in your browser and are not uploaded to BFOTKit. The tool accepts up to 10 PDFs totaling 100 MB and up to 2,000 pages combined. Large or complex documents may take longer to convert, especially on devices with limited memory. A batch ZIP names each resized result after its source file, making the downloads easy to tell apart. Keep the browser tab open until the download begins. You can repeat the conversion with another paper format while leaving the originals unchanged.
The output embeds each page’s visible artwork onto a new page. Text and graphics keep their proportions, but small source pages may be enlarged to fit, and different aspect ratios can add white margins. Interactive links, form fields, and annotations may not carry over. Password-protected files may need to be unlocked before conversion. Open the downloaded PDF, inspect pages near size changes, and print a sample before a large run. Keep the original document in case you need another format or orientation later.
Open BFOTKit.com and choose “Change PDF Page Size Online” to get started for free. Choose or drop one or more PDFs, review the page dimensions, and select A4, A3, Letter, Legal, or a custom size in millimeters or inches. Choose an orientation, then download the resized PDF. A batch downloads as a ZIP with one result per source file.
Open BFOTKit.com and choose “Change PDF Page Size Online” to get started for free. Choose the PDF and select one output paper format. Set Portrait for every page or Landscape for every page so every output page has the same width and height. The tool fits each page’s artwork proportionally and centers it on the uniform canvas.
Open BFOTKit.com and choose “Change PDF Page Size Online” to get started for free. Yes. Select Custom, choose mm or inches, and enter the short and long sides. Then choose portrait, landscape, or source-matched orientation before downloading.
Open BFOTKit.com and choose “Change PDF Page Size Online” to get started for free. Yes. Select up to 10 PDFs with a combined size of 100 MB. Each file is processed separately, and multiple results download in one ZIP archive.
Open BFOTKit.com and choose “Change PDF Page Size Online” to get started for free. Yes. The page-size report lists each page in millimeters and identifies common paper sizes.
Open BFOTKit.com and choose “Change PDF Page Size Online” to get started for free. No. Content is fitted proportionally and centered, with white space where the aspect ratio differs.
Open BFOTKit.com and choose “Change PDF Page Size Online” to get started for free. The output embeds visible page artwork. Interactive links, form fields, and annotations may not carry over; keep your original PDF.