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Print Specs & Safe Zones

Every Image Template has a specific canvas size. Use these dimensions when creating designs in Canva, Photoshop, or any other design tool.

Canvas sizes​

Mailer typeCanvas size (px)
Postcard 4×61875 × 1275
Postcard 6×91875 × 1275
Postcard 6×113337 × 1777
Letter (windowed or windowless)2550 × 3300
Notecard1800 × 1313
MagnaCard2588 × 1688
Gift Card1800 × 1313

Safe zone​

Keep all important content - text, logos, phone numbers, contact information - at least 10% away from each edge of the canvas. This is the safe zone.

Content that falls outside the safe zone may be trimmed during printing or sit uncomfortably close to the edge.

Example safe zone margins:

Mailer typeMin margin (left/right)Min margin (top/bottom)
Postcard 4×6 / 6×9 (1875 × 1275 px)~188 px~128 px
Postcard 6×11 (3337 × 1777 px)~334 px~178 px
Notecard / Gift Card (1800 × 1313 px)~180 px~131 px
MagnaCard (2588 × 1688 px)~259 px~169 px
Letter (2550 × 3300 px)~255 px~330 px

Bleed​

Your artwork should extend all the way to the edge of the canvas - and ideally slightly beyond the cut line - so there are no white gaps after trimming. This is called bleed. Use background colors and images that extend to the very edge of the canvas.

Cut line vs safety line​

When viewing the message back in the editor, two overlay lines are displayed:

  • Cut line (red) - the edge of the printed card after trimming. Artwork should extend past this line. Do not put important content here.
  • Safety line (blue) - the inner boundary of the safe zone. Keep all text and critical design elements inside this line.

The front image editor in the dashboard also shows these guides when you zoom in on the uploaded design.

Canva templates​

thanks.io provides official Canva templates sized to these exact dimensions for each mailer type. Start from one of these templates to get the canvas size, bleed, and safe zone set up correctly from the start.