PDF/X-1a: The Recommended File Format for StationeryHQ

A PDF is one of the most useful formats for professional printing because it can preserve page dimensions, vector artwork, typography, and image placement in a consistent document.

StationeryHQ's general file setup guidelines specify a flattened PDF using PDF/X-1a, compatible with Acrobat 4 / PDF version 1.3.

What is PDF/X-1a?

PDF/X-1a is a PDF standard designed for reliable print production. It places restrictions on certain elements and helps make files more predictable for commercial printing workflows.

Why use PDF/X-1a?

A properly prepared PDF/X-1a can help preserve:

Document dimensions
Vector artwork
Text appearance
Image placement
Color information
Page orientation

What should you check before exporting?

Before creating the final PDF:

Confirm the document size.
Confirm the bleed.
Check the color mode.
Outline fonts.
Check raster image resolution.
Remove crop marks and other printer's marks as specified by StationeryHQ.
Remove overprint according to the general guidelines.
Check black values and total CMYK coverage.
Review the exported PDF.

Should you use PDF/X-4 instead?

Different printers and products may support different PDF standards. Although PDF/X-4 is used in many modern print workflows, StationeryHQ's general file setup guidelines specify PDF/X-1a.

Do not substitute another PDF standard without confirming that it is acceptable for your product.