SPECTRUM POSTERS

 

 Print your

  Poster

from any digital file or Photo

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File Setup Guidelines

Imaging Terminology:

BITMAPS: Images are bitmaps of photos or scanned images, These are called bitmaps because they are a set of color dots pixels when displayed on screen and "halftones" when printed, typically these are photoshop.tif files) When enlarged the dots become bigger, see further info below. Maximum enlargement is 200-300% for pleasing results

VECTOR GRAPHICS: Drawings or illustrations which are a set of mathmatically defined "objects" lines, circles, boxes, etc. are vector graphics. These are typically logos or drawings from Illustrator .eps files. These can be enlarged to any size with out loss of definitions since they printed at the resolution of the output device.

We recommend you design your document at no less than 1/2 of the final size, or no more than 100% final size. .

The preferred file format is a pdf at full size or a jpg at 1/2 final size at 300 dpi. If your file is jpg please do not submit a pdf. If submitting full size jpg 220 dpi is optimal. Any higher resolution is discarded.

Image files print best when supplying RGB image files for output We can print from either CMYK or RGB image files. . Conversion of images to CMYK is not desirable for inkjet printing, as is required when going to press.

Text portions of your document print best with CMKY colors

To avoid banding in solid areas of black, make a four color black as follows: C=10  M=10  Y=10  K=100  (never define text as 4-color black unless > 24 pt.) To avoid banding in gradations ramp from at least a 3% value of a color to the second color. Avoid ramping from a 0% value of a color use 2 or 3%.

PowerPoint is the least desirable format but can be used if you have no other options.Problems can include text shifting or wrapping to the next line. This is normal and unavoidable. Please keep this in mind when printing large-format from PowerPoint. Also, when designing in PowerPoint, never "copy and paste" image graphics into your file. Always "insert as picture" - preferably .tif. (avoid .eps .jpg, .bmp, and .pct files) Powerpoint documenta must be supmitted as PDF files.

Microsof Word documents will not be accepted unless you release us from any guarantee of color or layout accuracy.