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Prepare files

Prepare files

With the edition of this manual and the invitation to comply it with the rules contained in there, it is only intended to gain in quality of completion of work, avoid delays in deliveries and unwanted expenses that may happen when having to dedicate screen hours in the prepress department.

Likewise, if the work is delivered correctly finished in all its aspects, it avoids that people outside the creation of the same have to manipulate it, with the consequent risk that this entails.

Let’s make the whole process develop in a safe, natural and fluid way, without forgetting that…

The absence of quality has repercussions on everyone

 

File format

At Solprint we generally recommend the use of PDF format for jobs submitted for printing. This format (if you follow the instructions in the following points) allows the exact reproduction of the content without modification, in addition to automated quality control.

To make PDF files, you can use any of the editors currently available, or any of the virtual printers, with which you can generate a PDF file from almost any other program, even if you can not save in this format. However, we recommend that you read all the following points carefully to avoid errors and achieve an optimum finish.

 

Cutting marks, bleed and security margins

Due to the fact that printed matter is printed on large format papers, it is necessary that the PDF file incorporates marks that indicate to the guillotine where the paper should be cut, so that the final product is cut to the desired dimensions.

However, there can always be a small millimetric difference between the mark and the actual cut, which is why the work must also be delivered with bleed. These correspond to a safe margin that seeks to avoid white edges due to millimeter variations of the cut or a displacement of the register when printing on both sides. Blood objects are objects or images that protrude from the cutting limits, so as to avoid any white edges in the final job.

Finally, just as bloods define a space of 4mm to the outside, safe margins define a space of 4mm to the inside. In this safe margin there should not be any object, text or image that should not be cut.

 

Colour

 

 

The CMYK model (an acronym for Cyan, Magenta, Yellow and Key) is a subtractive color model used in color printing. Offset printers generally print in these 4 colors plus special spot colors, if any (commonly called Pantone colors).

In digital printing, the most common is to use this model as well, so it is essential that your files have been designed or converted to the CMYK color model before sending them for printing.

Images

In the case of incorporating images to the document, it is necessary to take care of the following details:

  • Color Model: You must use the CMYK model and not the RGB model. In virtually all existing image editors it is possible to change the color model.
  • Resolution: The resolution of an image is obtained by dividing its dimension in pixels by the size in inches of its printing. In any image program it is possible to consult these values, and modify them. It is necessary that the resolution of the images for printing is superior to 300pp, although it is recommended a minimum resolution of 600pp.
  • Format: If you are sending us images in their original format without first converting them to PDF, it is important that you use uncompressed or lossless compression. This is the case for PNG, TGA, TIFF or BMP formats. If you are going to use the JPG format, be careful with the quality level (which should be set as maximum), because even if you do not see any substantial modification on the screen, the final print result may be affected.

 

 

Fonts

When sending your files, you must ensure that they incorporate the fonts within them, even though these are common. Let’s not forget that font substitution not only changes the typography, but can change the justification of the text, sizes, etc… Embedding fonts ensures that the PDF uses the same fonts as the original document, regardless of where the PDF opens or the fonts installed in that system.

In general, you will find the option to embed fonts in the virtual printers, free or paid, existing today. PDF editors also incorporate this option. Another option, if you are using a vector design program, is to draw or convert fonts to curves, so you no longer need to embed them. The disadvantage is that the file size will increase ostensibly.

Do you have more questions? Contact our support and customer service

 



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