The dotted green line represents gutter.
Gutter width printing.
Depending on the size of the book the gutter can be anywhere from 1 4 1 2.
Again in the crop tool crop 0 5 inches from left.
Sometimes a rule is used instead of blank space.
Gutter width can take up 1 4 to 1 2 from the page therefore there must be an extra 1 4 1 2 of safety margin space on the side of the page where the gutter spine will be.
What do i do if i have content such as images or text that goes across two pages.
Ratio of depth to width of gutter select gutter ratio 0 125x 0 25x 0 375x 0 5x 0 625x 0 75x 0 875x 1x 1 125x 1 25x 1 375x 1 5x 1 625x 1 75x 1 875x 2x calculate drainage reset.
This is a visual reference to stop you from crowding the finished edge the solid red line with text and any graphics that don t require bleed.
The example below shows the appropriate use of gutter for the text along the top left and bottom edges of the design.
In typography the term gutter refers to the space between columns of type usually determined by the number and width of columns and the overall width of the area to be filled.
Generally speaking 0 5 inches for your gutter margin is recommended for most books.
In the crop tool increase the page width to 9 11 inches with the center box checked.
An example of a perfect bound book gutter can be seen below.
Page width for all pages should now be 9 11 inches.
If acrobat adds an offset value move that back to 0.