Illustrator provides us with a wide range of drawing opportunities, but the more complex the utilized effects are, the higher the risk of getting a problem when printing is. To avoid this, you want to comply with a few simple rules for creating and saving vector files that you’re planning to print.
In this Illustrator tutorial we will not go into the smallest particulars equivalent to coloration profiles and printing using 5 colors. Our task is just to learn to resolve in what way to save the image, relying on the drawing technique.
Working with the stroke and black colour in Illustrator
If you create even a simple vector image, you are required to take under consideration some of the peculiarities proper at the stage of creation of the new vector file. Should you choose to not convert the strokes to objects, in order not to improve the number of nodes and, subsequently, the time of file processing, do not forget to tick Scale Strokes & Effects within the fly-out menu within the Rework panel, it will permit to scale the stroke together with the object. This rule should be utilized to brushes too.
If there are black vector outlines in the illustration, they should be one hundred% black, without mixtures of different colors. The strokes thickness shouldn’t be less than 0.1 mm, and it is healthier to set 0.15 mm and above for them. A big area of the image covered with black shade, on the contrary, must include colors apart from black, otherwise the background shall be dim. The total density of the composite black depends upon the profile of the precise printing, and when executer is unknown, it is accepted to remain within the amount of 300%.
Creating bleeds for proper reducing of the illustration for the replication.
If the work is created for replication and contains background coming to the perimeters of the format table, it is desirable to slightly lengthen the background beyond the deliberate borders: normally 3 mm alongside the perimeter. In any other case illustration may merely become not properly cut. Illustrator means that you can create bleeds and preserve the right dimension of the illustration, by setting the appropriate settings in the Doc Setup and Save Adobe PDF dialog windows.
What might be finished? You just must be able to deceive the human eye. The truth that the identical shade looks completely different on the dark, white and non-distinction backgrounds is known to each artist from the school bench. Carefully think over the color scheme. In addition, Illustrator has handy settings of the gradients and their skillful use will pressure an individual to “make up” graphic information and see your image brighter and more attractive than what print in 4 colours shows. When the chosen graphical model permits you to apply gradients – use it.
The right way to put together complicated images that comprise clear objects and raster effects for printing.
When technically a simple image can be saved in EPS or PDF codecs and easily despatched in print, the utilization of transparency, mixed with gradients, Artwork Brushes, patterns, Opacity Masks and raster effects requires more careful preparation. When printing house is known in advance, all the details will be obtained from the tech. Theoretically, they will just accept your completed illustration saved in EPS format from model 9 and up or PDF 1.4. Saving files in the mentioned codecs, lets you open them in Illustrator within the “unique” form and easily edit as necessary. Modern equipment and software are loyal to transparency.
However when the further fate of the file cannot be traced, many prefer to play it safe. Good old barbaric way to save this illustration in EPS8. Thus, even elliptical radial gradients shall be saved as Clipping Masks, into which raster is placed. If you don’t mind this phenomenon, use it safely, but your image can no longer grow to be edited. However make certain you keep the unique vector file.
One other, gentler way for the vector is the Flatten Transparency (Object > Flatten Transparency …). In this case, the overlapping areas will probably be transformed into individual objects. In different words, instead of overlapping objects with transparencies you get three opaque ones. Object, resulting from the intersection space, will probably be colored into the corresponding color. When getting ready a file, it is desirable to activate the Overprint Preview characteristic (View > Overprint Preview).
Flatten Transparency can be utilized to the objects with transparencies, as well as to the objects on which they’re overlapped. When using the Artwork Brushes, textures, text, patterns below the clear areas, first run Broaden command to avoid attainable distortions. Note, this operation increases the number of nodes, which affects the dimensions of the file, though not for the better. Next, do the Flatten Transparency command. Raster \ Vector Balance slider needs to be on the right utmost position.
But when the file contains objects with gradients which are one on high of another with the Mixing modes utilized to them, the location of their intersection shall be rasterized. Flatten Transparency operate will not work here. What else is rasterized? Using of Gaussian blur and Radial blur, Drop Shadow, etc. entails rasterizing of some components of the objects.
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