[scribus] Proper setup for a book

[Silvain Dupertuis]

Normally, you *do not have to put internal bleed*.
If a picture (or another element) gets right to the inner border of the page, it should be 
cropped just at the border of the paper.
The only exception being if you want a picture to extend on two adjacent pages, but this 
would be reliable only in case this is the middle page of a "signature" - for exemple, if 
they are printed as group of 16 pages, that would be p.8-9, 24-25, 40-41, etc., and even 
though, a part of the picture would be hidden by the binding...

Le 27.02.20 à 21:08, Gregory Pittman a écrit :
> On 2/27/20 3:49 AM, Christoph Bartoschek wrote:
>> Hi,
>>
>> I would like to create a book with Scribus but are unsure about a good
>> setup. This is what I have:
>>
>> The two-side pages are 185mm x 230mm.  I want to print them on DIN A4
>> (210mm x 297mm) and the pages will later be cut by the bookbinder. There
>> should also be a 3mm bleed on all sides.
>>
>> The crop marks have the default length of 7mm.  The width of a page would
>> now be:
>>
>> 185mm (page) + 2*3mm (bleed) + 2*7mm (crop marks) = 205mm.
>>
>> To get to the 210mm of DIN A4 I add an crop mark offset of 2.5mm. It seems
>> the offset cannot be set differently for the different sides of the page.
>> Thus to get to 297mm vertically I set the bleed on top and bottom to 24mm
>> resulting in:
>>
>> 230mm (page) + 2*24mm (bleed) + 2*7mm (crop marks) + 2*2.5mm (crop offset)
>> = 297mm
>>
>> Given this I wonder what the horizontal distance between the left and right
>> pages should be. I get input for the book from other people and they would
>> like to send me input that spans left and right. I see two major options
>> for the horizontal distance:
>>
>> 0mm:  If I get a two page input which is 2*185mm + 2*3mm (bleed) = 376mm
>> then I can just put it at position (-3mm, -3mm) of the left page and I get
>> proper bleed for the left and right page even on the inner sides because
>> the contents of the other page are added to the bleed. However, If I only
>> want to completely fill one page (e.g the left one) then I see no good way
>> to add the picture with inner bleed such that it does not appear on the
>> also on the right page.  Or is there an option that an element is only
>> considered for one page during export?
>> One might argue that an inner border does not need bleed at all, but I
>> would like to have one.
>>
>>> = 6mm:  Now the inner bleed of one page does overlap with the page
>> contents of the other page. Properly positioning input on a single page
>> works fine. However, the two page inputs cause problems. If I just expand
>> them over the two pages then I loose some content in the middle.  To avoid
>> this it seems that I have to add the content twice to the book, once for
>> the left and once for the right page, and then shift and crop them such
>> that each page shows the right content.  This requires careful
>> calculations, especially if the input has to be scaled to fit. It's easy to
>> make mistakes.
>>
>> For me it seems as if I have to go with >= 6mm as this is cumbersome but
>> works. I am interested about what other people would choose in such a
>> situation. Or is there something that I do completely wrong?
> I think perhaps the best thing is to discuss the issues with your printer, sending a test document with these bleeds and crop marks.
> There are situations where one might want an image on the inner part of a left page to spill over to the inner part of the adjacent right page.
>
> Greg
>
>
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-- 
Silvain Dupertuis
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