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Update trim dimensions and cover export functionality in Blurb Photo Book Editor

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ryan
2026-10-07 17:14:49 -04:00
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@@ -26,9 +26,9 @@ Photo cards show the date as `mm/dd/yyyy`. Dates come from supported timestamps
## Blurb print setup and export
The default trim area is **9.5 × 8 inches per individual page**. In **File → Blurb print setup**, enter the final PDF page width and height and the trim offsets required for the selected Blurb book format, paper, and cover. The exported PDF has one page per book page and includes the configured bleed area. The dashed guide shows the trim area, including alternating binding and outside edges.
The default trim and PDF page size is **9.625 × 8.25 inches per individual page**, with zero trim insets. In **File → Blurb print setup**, enter the final PDF page width and height and the trim offsets required for the selected Blurb book format, paper, and cover. The exported PDF has one page per book page and includes the configured bleed area. The dashed guide shows the trim area, including alternating binding and outside edges.
Export renders photo pages at 300 PPI, checks the resulting PDF page count and dimensions, and requires an even page count. It can append blank pages to meet the configured minimum. The default page limits are 20–440; set them to the limits for the selected format and paper. When cover content is assigned, export also creates a one-page full-spread companion named `<book>-cover.pdf` beside the interior PDF. Cover face defaults are 10.074 × 9 inches, with a 0.46-inch spine. Wrap/bleed margins start at 0.125 inches on each edge; these are editable starting values, so verify the exact dimensions and margins for the chosen Blurb format, paper, and page count before exporting.
Export renders photo pages at 300 PPI, checks the resulting PDF page count and dimensions, and requires an even page count. It can append blank pages to meet the configured minimum. The default page limits are 20–440; set them to the limits for the selected format and paper. When cover content is assigned, export also creates a one-page full-spread companion named `<book>-cover.pdf` beside the interior PDF. Use **File → Export Cover PDF** to export only the cover. Cover face defaults are 10.074 × 9 inches, with a 0.57-inch spine and zero wrap/bleed margins. Front and spine text defaults to MV Boli; if it is unavailable, the app uses Arial or the system sans-serif font. These are starting values; verify the exact dimensions and margins for the chosen Blurb format, paper, and page count before exporting.
Blurb's requirements vary by book configuration. Check the current [PDF-to-Book specifications](https://support.blurb.com/hc/en-us/articles/207792946-PDF-to-Book-specifications-and-checklist) and [page-count limits](https://support.blurb.com/hc/en-us/articles/7607055286541-How-many-pages-can-my-book-have) before exporting.