The layout is prepared to scale in the color model CMYK by layout
process coated.
Layout elements should not extend beyond the poster.
All text must be converted to curves.
The vector file SHOULD NOT be prepared at full size. .
We therefore ask you to use the following scales:
for posters with a maximum size of up to 50 sq.cm - 1:1;
for posters with a maximum size of up to 10 sq.m - 1:10;
for posters with a maximum size above 10 sq.m - 1:25.
When preparing vector files, you should take into account that rasterization programs (as well as Adobe Photoshop) do not interpret in any way such a vector file parameter as the document size - for them the overall dimensions are the dimensions of a rectangle covering ALL the elements you created (including .
Therefore, when creating a layout, you must ensure that ALL elements of the layout are only INSIDE the area of your poster. .
Be careful when using black and gray colors, as by default vector programs use non-composite black and gray colors, which are not suitable for our printing technology.
After finishing work on the layout, you need to translate the entire text to curves. We do not accept files with text that is not converted to curves (including if there are fonts attached to the file).
The finished layout must be saved in the format EPS (version from 6) or
Adobe Illustrator (*.ai). If your layout contains raster images, we ask you to save the layout in AI format with linked raster images (the vector file and the raster files used are written to a folder, which will be the layout of your layout). .
Don't forget. .
Preparing raster files for large format printing
Files are prepared at a scale of 1:1; .
You need to save files WITHOUT Compression LZW. .
The file resolution is set taking into account that the “weight” of the file does not exceed 300 MB.
If the image size is more than 10 sq.m, then it is necessary to increase the resolution and reduce the image by the same number of times.
Bleed allowances and white margins should not be included in the image..
Only files in the CMYK color model are used for printing. .
The PSD “layered” format is preferable for pre-press preparation, as it provides greater color correction capabilities (adjustment of pantone and corporate colors, etc.).
However, we ask you not to leave ALL working layers - you need to delete unused layers and merge image layers that do not overlap each other. .
Preparing raster images for vector files
The only difference from the preparation of ordinary raster files is that raster images for vector files are not prepared in full size, but the proportions specified in the vector file are used (this is done only for ease of use and is not of fundamental importance).
For example, if the raster image on a poster has a size of 2m x 3m, the vector file is prepared in a ratio of 1:10 and the poster will be printed with a resolution of 360dpi, then the dimensions of the image in the file should be 20cm x 30cm (i.e. 10 times smaller) ).
It should be noted that when scaling raster images in vector programs, no real changes to the raster occur, i.e. the number of pixels in the raster does not decrease or increase.
Color requirements for large format printing
When preparing files for large format printing, there are two basic requirements to consider:
black and gray colors must be composite;
The total amount of paint should not exceed 300%.
When preparing files, you cannot use black and gray colors consisting only of black paint (CMYK 0,0,0,100). .
To avoid this effect, use CMYK 60,50,40,100 as black and a percentage of the specified black as gray (for example 10,10,10,20).
First of all, you should pay attention to this when preparing vector files (when converting raster files from RGB to CMYK, black and gray are automatically converted to composite colors), since “by default” raster graphics programs use non-composite black and gray colors.
Technological limitations
Technological limitations that should be considered when preparing files are:
minimum text height - font sizes with serifs are at least 8 pt, sans serif - 7 pt.;
low intensity color sensitivity threshold - 6%.
If you use text less than the minimum height, we cannot guarantee its legibility.
Printouts made on household printers are not accepted as color samples. .
Metallic coated materials and prints made using gold or silver ink are not accepted as color samples. .
