Resize PDF Pages

Change PDF page size without flattening the document into pictures

A PDF can be perfectly readable and still use the wrong paper size. A US Letter document may need to print on A4 paper. A form may be rejected because its page canvas is not the required dimension. A mixed-size scan may need one consistent format before it is combined, numbered or shared.

DraftFort’s PDF resizer changes the page canvas and geometrically places the existing page content inside it. It does not deliberately render each page as a screenshot. In ordinary PDFs, that means text remains selectable, vector lines stay sharp and images are not intentionally recompressed.

Everything runs on your device. The selected PDF is not sent to DraftFort for conversion, and you do not need an account.

How to resize a PDF online

1. Add your PDF. Drop one file into the tool or choose it from your device.
2. Choose the target paper size. Pick US Letter, A4, Legal, A3, A5, Tabloid, Executive or B5. Choose Custom for an exact width and height.
3. Choose portrait or landscape. The preview updates to show the new canvas.
4. Choose how the old page should fit. Fit is safest for most documents. Fill can trim edges; Stretch can change proportions.
5. Set a safe margin. The same margin is reserved on all four sides.
6. Resize all pages or a page range. A range can look like 1-3, 5, 8-10.
7. Download and review the new PDF. Your source file is never overwritten.

The first-page preview explains the geometry before you save. It is a layout guide rather than a substitute for opening and checking every output page.

A4, Letter and other useful PDF sizes

Letter and A4 are close, but they are not interchangeable. Letter is wider and shorter; A4 is narrower and taller. Fit is usually the safest way to move between them because it preserves the complete page and its aspect ratio.

Fit, Fill or Stretch: which mode should you use?

Fit — keep the entire page

Fit scales the source proportionally until all of it sits inside the available area. It may leave white space on two sides when the source and target shapes differ. Choose Fit for contracts, forms, invoices, resumes, reports and any document where cutting off content would be unacceptable.

Fill — cover the target sheet

Fill scales proportionally until the target area is fully covered. It avoids empty bands, but part of the source can extend beyond the new page boundary. Choose it only when trimming the outer edges is acceptable, then inspect every page before sharing or printing.

Stretch — force the exact shape

Stretch scales width and height independently. It fills the available area without proportional cropping, but circles can become ovals and text can look wider or narrower. It is useful for a small number of mechanical requirements, not as the default for a polished document.

Resizing is not the same as compressing or cropping

These three PDF tasks solve different problems:

Changing page dimensions does not guarantee a smaller file. Large scans remain large unless their images are recompressed. Conversely, compression can reduce bytes without changing the paper size.

What the tool preserves—and what still needs checking

DraftFort applies PDF coordinate transforms to page content. Ordinary text, images and vector artwork normally remain in PDF form instead of being flattened into one page-sized bitmap. That protects sharp printing and selectable text.

PDFs can also contain interactive forms, comments, links, layers, bookmarks, attachments, accessibility structures, scripts and digital signatures. Some advanced structures may not follow a resized page perfectly when a new PDF is written. A cryptographic signature can become invalid because the document has changed. Keep the original and inspect important output in the PDF viewer the recipient will use.

For a simple print-ready report, invoice or scan, a proportional Fit is normally the most dependable choice. For a legally signed, accessibility-critical or complex interactive PDF, use the original authoring application when those structures must be preserved exactly.

Why private resizing matters

PDFs often contain customer details, payroll records, contracts, statements, medical paperwork or internal plans. A page-size change does not require a document-processing server. DraftFort loads the PDF code in your browser only after you choose a file, performs the transformation locally and gives the result back as a download.

Very large PDFs still depend on the memory and processor available on your device. A desktop computer may handle a long image-heavy scan better than a phone. No local tool can remove that physical limit, but it can remove the unnecessary upload step.