What is the difference between Letter and A4 PDF pages?

US Letter is 8.5 × 11 inches. A4 is 210 × 297 mm and has different proportions, which can change margins and printer scaling.

Is Letter actually selected before I upload?

Yes. Letter is selected when this page opens. You can change it if your document needs another paper size.

Will my printer automatically use the PDF's Letter size?

Printer settings may override the document size or apply scaling. Check the selected paper tray and print preview in your PDF viewer.

Can I make a searchable Letter-size PDF?

Yes. Select Make text searchable and choose the source language. The OCR layer supports recognized text while the visible pages use the chosen layout.

Can I make a Legal-size PDF here?

No. The paper choices are A4, Letter and Image fit. For a longer page, choose Image fit with an image that already has the shape you need, or use Letter and accept the extra white space. There is no Legal or custom millimeter size.

Why is the margin slider in millimeters on a Letter page?

The control uses millimeters for every paper size, from 0 to 40 mm. For a US reader that is about 0 to 1.6 inches, and 25 mm is close to one inch. There is no inch setting, so convert the margin you want before you move the slider.

How do I turn a photo of a US form into a full-page Letter PDF?

Crop the photo to the sheet's edges, add it, keep Letter and set the margin to 0 mm. The picture is scaled to fit and centered, and a form photographed straight on has proportions close to Letter. Check that no edge is trimmed before you print.

Will a Letter PDF print correctly on A4 paper?

It prints, but your viewer or printer scales it or crops an edge, because A4 is about 6 mm narrower and 18 mm taller than Letter. Choose the scaling option in the print dialog on purpose, and print one test page before a large run.

How do I fix one sideways page in a Letter PDF?

The Pages list has no rotate control, so turn the image upright with Rotate Image before you add it. Orientation is one setting for the whole document, so rotating the image itself is the way to fix a single sideways page.

Is a Letter PDF smaller or larger in file size than A4?

File size depends on the images, not the paper. Letter and A4 hold the same pixels, so a document of full-resolution photos is large on either. Reduce the photos, or use a PDF compressor on the finished file, if it must fit a size limit.

Images to US Letter PDF — Set 8.5 × 11 Inch Pages — JPG and PNG to PDF converter that combines photos into one file — After — A realistic source document followed by the actual Image to PDF document state or output artifact.

Image to PDF

Images to US Letter PDF — Set 8.5 × 11 Inch Pages

Choose page images

Upload the images for your US Letter document

Create a US Letter PDF from images with Letter paper preselected. Adjust margins and orientation, check print readability and add searchable OCR if needed.

Letter-size administrative packets
Handouts for Letter-paper printers

What should the PDF do?

Create a normal PDFPlace the images on PDF pages without reading or changing their text.Make text searchableKeep each image visible and add an OCR text layer for search, selection and copy.

Upload Images

Upload the images for your US Letter document

Pick multiple — each image becomes a PDF page

Convert images to a US Letter PDF with 8.5 × 11 inch pages

This page builds a PDF whose pages are all US Letter, 8.5 by 11 inches, from photos, scans or screenshots. Letter is the paper of US and Canadian offices, schools and many government forms, and a PDF built on the wrong size gets scaled by the printer or clipped at an edge. Here the paper size is set before you upload, and the rest is about margins, orientation and how your pictures sit on the sheet.

How Letter differs from A4 in practice

Letter measures 215.9 by 279.4 mm, so it is about 6 mm wider and 18 mm shorter than A4, and about 1.29 times taller than wide against 1.41 for A4. That is closer to the shape of a portrait phone photo, which is 1.33, so a 3:4 photo fills a Letter page with only thin bands at the sides, where on A4 the bands run along the top and bottom. If your recipient uses the other size, build the A4 version.

Set margins in millimeters, even on a Letter page

The Margins slider is labeled in millimeters from 0 to 40 and starts at 10 mm, about 0.4 inch. One inch is 25.4 mm, so a 25 mm margin gives the one-inch border most forms use, and the 40 mm maximum is about 1.6 inches. A larger margin shrinks the picture to fit rather than cropping it, so check small print after you raise it.

Add the images; the paper control already reads Letter.
Choose Portrait or Landscape for the whole document.
Set Margins in millimeters; 25 mm is about one inch.
Select Make my PDF, then open the file and preview one page.

Print the Letter PDF at its true size

In the print dialog of your PDF viewer, choose actual size or 100% rather than fit-to-page, and make sure the paper is Letter. Shrink-to-fit options reduce the page a little and add a margin you did not choose, which matters for forms with fixed positions. If your printer tray holds A4, the print dialog may offer to scale; for a form that must keep its dimensions, load Letter paper instead.

Photos and scans of Letter documents

A scan of a Letter sheet already has Letter proportions, so with a 0 mm margin it fills the page edge to edge. A scanner that saves a slightly cropped file leaves thin bands that a quick crop removes first. To add the new pages to an existing Letter document, build them here and then merge the files in the order you need.

Before you print or submit the Letter file

At 300 dpi a Letter page is 2550 by 3300 pixels, so a scan around that size prints sharply.
Use Landscape only when most pages are wide, since the setting covers every page.
Name the file for the form or the recipient in Output filename.

Avoid an A4 export when your recipient expects US Letter

Use the paper size expected by a US Letter printer or document request. This page starts with Letter selected, avoiding an accidental A4 export. Review each image's scale and margins before printing or sending the finished PDF.

Letter-size administrative packets

Combine image pages for a request specifying US Letter and check the receiving organization's content and upload rules separately.

Handouts for Letter-paper printers

Create a consistent document from mixed image sizes and review the printed scale before producing multiple copies.

Prepare Letter pages and check printer scaling

Choose your images; the paper control starts on Letter.
Set orientation and margins, checking that small text remains legible at Letter size.
Download the PDF and choose the appropriate scaling option in your printer dialog.

Letter defaults, printer overrides and OCR options

What is the difference between Letter and A4 PDF pages?: US Letter is 8.5 × 11 inches. A4 is 210 × 297 mm and has different proportions, which can change margins and printer scaling.
Is Letter actually selected before I upload?: Yes. Letter is selected when this page opens. You can change it if your document needs another paper size.
Will my printer automatically use the PDF's Letter size?: Printer settings may override the document size or apply scaling. Check the selected paper tray and print preview in your PDF viewer.
Can I make a searchable Letter-size PDF?: Yes. Select Make text searchable and choose the source language. The OCR layer supports recognized text while the visible pages use the chosen layout.
Can I make a Legal-size PDF here?: No. The paper choices are A4, Letter and Image fit. For a longer page, choose Image fit with an image that already has the shape you need, or use Letter and accept the extra white space. There is no Legal or custom millimeter size.
Why is the margin slider in millimeters on a Letter page?: The control uses millimeters for every paper size, from 0 to 40 mm. For a US reader that is about 0 to 1.6 inches, and 25 mm is close to one inch. There is no inch setting, so convert the margin you want before you move the slider.
How do I turn a photo of a US form into a full-page Letter PDF?: Crop the photo to the sheet's edges, add it, keep Letter and set the margin to 0 mm. The picture is scaled to fit and centered, and a form photographed straight on has proportions close to Letter. Check that no edge is trimmed before you print.
Will a Letter PDF print correctly on A4 paper?: It prints, but your viewer or printer scales it or crops an edge, because A4 is about 6 mm narrower and 18 mm taller than Letter. Choose the scaling option in the print dialog on purpose, and print one test page before a large run.
How do I fix one sideways page in a Letter PDF?: The Pages list has no rotate control, so turn the image upright with Rotate Image before you add it. Orientation is one setting for the whole document, so rotating the image itself is the way to fix a single sideways page.
Is a Letter PDF smaller or larger in file size than A4?: File size depends on the images, not the paper. Letter and A4 hold the same pixels, so a document of full-resolution photos is large on either. Reduce the photos, or use a PDF compressor on the finished file, if it must fit a size limit.