Before deliver Photoshop to printing, you shall:

1. Ensure that the precision is 300dpi/pixel/inch.

2. Ensure that the picture mode is CMYK.

3. Ensure that there is no variedness in the solid under-color (e.g. pure yellow， pure black etc.)

4. File format is recommended to be PSD before layer-merging.

5. Better not to complete word caption in Photoshop, for word would become fuzzy after being converted into picture format. Photoshop operation only covers image in most cases, so it is recommended to solve image, figure and word by different software if one printing page is to be done. For images to be printed, focus shall be put on their resolution and dimension. The usually applied calculation formula is: resolution=screen frequency*(1.5-2). Color mode of color image shall use CMYK. Monochrome image, without specific demand, shall apply gray scale mode. For line art images which must be in the raster form, such as bar code, the resolution is generally not lower than 1200dpi and the color mode shall be binary(bitmap). Dot matching is another important point affecting image quality. The CMYK dot matching of contrast, dot size and the balance data of gray must fit the post-order printing technology. For example: in case of using offset paper, the dot contrast is usually between 5%~85%, and between 2%~98% in case of using chrome paper.

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Commented by Lizabeth ip:188.143.232.*	2012-12-09 20:50:15
In the compilacted world we live in, it's good to find simple solutions.
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Commented by hwt26 ip:220.112.37.*	2010-03-27 13:34:43
Posted by KhalidAziz on 2010-03-05 18:05:39: Should there be any bleed added for artwork going to the end of the page? If so, how much of a bleed? Do you accept Adobe InDesign as a final file format? How much space for gutter for perfect binding. (150 page) The artwork requires add 3mm bleed on each edge, for example, finished catolog size A4, the artwork size is 303 x 216mm. we can accept Adobe InDesign as a Final format, and you mentioned the design method is correct. If 150pages booklet,use 80gsm peper, the spine need 8mm for gutter for perfect binding.
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Commented by KhalidAziz ip:86.62.12.*	2010-03-05 18:05:39
Should there be any bleed added for artwork going to the end of the page? If so, how much of a bleed? Do you accept Adobe InDesign as a final file format? How much space for gutter for perfect binding. (150 page)
	Agree[1]  Disagree[2]