Use the calculator below to determine your spine width
and the correct dimensions for your complete book cover PDF.
Enter your page count, paper stock, and finished book size
to get the measurements you need.
Book Spine Calculator
Estimated Spine Width
0.000"
Spine width includes an additional 2 mm allowance.
Actual spine width may vary slightly depending on
the paper and binding process.
Cover File Calculator
PDF Document Size — With Bleed (0.125")
0 × 0"
Use this as the page size for your complete cover PDF.
Finished Book Size
6 × 9"
Spine Width
0.000"
Cover Size — No Bleed
0 × 0"
Bleed
0.125" on all sides
Safe Margin
0.25"
Spine Position
Spine starts:
0.000"
from the left edge of the finished cover.
Spine ends:
0.000"
from the left edge.
With bleed (0.125"), the spine starts:
0.000"
from the left edge of the PDF.
Cover Layout
BACK COVER
SPINE
FRONT COVER
Bleed (0.125") is required on all sides.
Safe margin: 0.25" from the finished trim edge.
Keep important text and graphics inside the safe margin.
Understanding Your Book Cover
A perfect bound book cover is supplied as one complete
spread containing the back cover, spine, and front cover.
The calculator above provides the dimensions required
to create your cover PDF.
Cover Size — No Bleed
This is the finished size of the complete cover
after trimming. It includes both covers and the
spine, but does not include bleed.
PDF Document Size
This is the actual size your cover PDF should be.
It includes the required 0.125" bleed on every side.
Spine
The spine is the area between the front and back
covers. Its width is calculated from your page
count and selected paper stock.
Safe Margin
Keep important text, logos, and other critical
content at least 0.25" inside the finished trim
edge.
Bleed & Safe Margins
Bleed and safe margins serve different purposes and are
both important when preparing your cover artwork.
Measurement
Amount
What It Means
Bleed
0.125"
Artwork should extend 0.125" beyond the trim
edge on all sides.
Safe Margin
0.25"
Important text and graphics should remain at least
0.25" inside the finished trim edge.
Spine
Calculated above
The calculated area between the front and back covers.
How to Prepare Your Cover
Follow these steps when creating your perfect bound book
cover.
1. Select Your Specifications
Enter your page count, paper stock, and finished
book size into the calculator above.
2. Create One Complete Cover
Your cover should be one continuous PDF containing
the back cover, spine, and front cover.
3. Use the PDF Dimensions
Set your document to the calculated
PDF Document Size, which includes
the required 0.125" bleed.
4. Position Your Spine
Use the calculated spine width and position shown
above to place your spine accurately between the
back and front covers.
Common Cover File Problems
Please check your artwork carefully before submitting it.
The most common cover problems include:
Cover is supplied as separate front and back files
instead of one complete cover spread.
Incorrect overall PDF dimensions.
Missing or insufficient 0.125" bleed.
Text or important graphics are too close to the trim edge.
Spine text does not fit within the calculated spine width.
Spine is positioned incorrectly.
Important artwork is placed within the bleed area.
Low-resolution images are used.
Fonts are missing or not embedded.
Artwork contains unintended crop marks or printer marks.
Cover Setup Example
Here's an example of how the measurements work together.
Example: 6 × 9" book, 100 pages, 32lb/80lb paper
Page count: 100 pages
Paper thickness: 0.006"
Additional allowance: 2 mm
Estimated spine:
0.000"
The complete finished cover is the width of two
finished covers plus the spine.
Finished cover:
0.000" × 9"
PDF size including 0.125" bleed:
0.000" × 9.250"
Before You Submit Your Cover
Your cover is one complete PDF page.
The PDF is the correct calculated size.
The PDF includes 0.125" bleed on all sides.
Important content is at least 0.25" from the trim edge.
The spine width matches the calculated spine width.
Spine text fits comfortably within the spine.
Images are high resolution and suitable for printing.
Fonts are embedded in the PDF.
You have carefully reviewed the complete PDF before submitting.
Important:
PrintVie.com does not correct, resize, reposition,
or otherwise modify customer-supplied artwork.
Please ensure your file is correctly prepared before
submitting it for printing.