Video summary

What is Bleed?

Main summary

Key takeaways

Educational

Main idea: What “bleed” is (printing concept)

  • Bleed is the extra space added to the outside of a printed document that will be cut off during printing.
  • Its purpose is to let artwork/page elements reach the edge of the final trimmed page, preventing white borders if trimming isn’t perfectly precise.

How bleed affects layout and final page size

  • When designing the interior and cover, you must account for bleed by extending your content beyond the final trim size.
  • The video states you should add:
    • 0.125 inches on each side of the page for bleed
      • Total extra width: 0.25 inches
      • Total extra height: 0.25 inches
  • Therefore:
    • Your final file page size should be 0.25 inches wider and taller than your selected book size.

Example (interior page size)

  • If the selected book size is 6 × 9 inches:
    • Create the interior page size as 6.25 × 9.25 inches (to include bleed).

Extending images/elements to the edge

  • Any image or element intended to go to the edge of the finished page must:
    • Extend beyond the trim size to cover the bleed area.
  • After printing, the bleed area is trimmed off, resulting in the intended 6 × 9 final page.

Cover setup (including bleed)

  • For the cover, you must provide a:
    • Single cover spread PDF containing front cover + spine + back cover.
  • Bleed rules still apply:
    • Add 0.125 inches to each side of the cover document.

Example (cover size with spine)

  • For a 6 × 9 paperback with a 0.5 inch spine:
    • Total cover spread document size should be 12.75 × 9.25 inches.

Templates and safety margins

Lulu templates

  • The video notes:
    • All of Lulu’s provided templates include bleed.
  • So if you use one of their templates:
    • You don’t need to add additional bleed yourself.

Safety margin requirement (to avoid important content being cut)

  • Use a 0.5 inch safety margin on both:
    • Interior files
    • Cover files
  • Purpose:
    • Safety margins improve readability/appearance and ensure important elements aren’t accidentally cut off during trimming.

Trimming variability concept

  • Slight trimming differences can happen due to press/process variation.
  • Because of this, it’s critical that:
    • Text and important information remain inside the safety margins, not near the bleed edge.

Speakers / sources featured

  • No specific speaker is identified in the subtitles.
  • Source/company mentioned: Lulu (as the provider of templates).

Original video