Scientific Posters
| Same Day Service Orders uploaded by 1:00 p.m. ship the same day. If you are in the vicinity of Chicago are, you will receive your orders the next day. Or you are welcome to visit our location and pick up your order. However if you uploaded the file after 1:00 p.m. and still need the poster next day, please call us. We will make every effort to meet your deadline. Print Quality Material |
Pricing Following is typical pricing including taxes for printing 1 side on curl free, 13 oz. scrim banner material.
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It’s easy to start your next print project. Just send us your files.
What kind of images can be used?
Web Graphics vs. Print Graphics
Images captured from websites are not suitable for printing. An image that has been compressed for the web is usually not good for much else. The two main reasons for this are image resolution and color reduction.
Image Resolution
Image resolution measures the number of dots or pixels in one linear inch of the image. Image resolution is measured in dots per inch or dpi. The higher the dpi, the crisper and finer the image. When an image has low dpi, it can have jagged edges and the dots will appear large and clunky. Web graphics are saved at 72 dpi because that is the best resolution that monitors can display. Professional print graphics are usually 300 dpi. Larger than 300 dpi does not contribute to fineness of graphics.
Vector graphics always print sharp and can be enlarged to any size without any loss of detail.
All image files can be categorized into two kinds, Bitmap-based and Vector-based files. The two differ in the way computers analyze their content.
Vector-based images are well-defined elements such as curves and shapes of various colors. These elements can either be pure graphics, western alphabets or Asian characters. Each element is defined mathematically by the computer. For example, if a vector-based image contains a red dot, then information such as the location of the circle’s center point, the length of its radius, and the color, red, would be the essential information for this image file.
File names for vector-based images usually consist of extensions such as *.EPS, *.AI, *CDR, or *.DWG.
Vector-based files are more suitable for illustrations that require precise measurements. They are also easily scalable due to their mathematical nature. However, the vector-based file format has its drawbacks as well. It is not always good for displaying photo-realistic images.
Bitmap-based images, on the other hand, do not rely on mathematical formulas to define their various elements. Each bitmap-based image is mapped into a grid. The size of the grid is based on the image’s resolution. For example, a bitmap-based image of 1 inch x 1 inch with a 600 dpi resolution would be defined by a grid of 600 x 600 pixels. Hence, a bitmap-based image is like a mosaic of pixels with each pixel holding a specific color value.
Bitmap-based files are more suitable for photo-realistic images that require complex color variations. They are, however, not easily scalable because each bitmap-based image is mapped to a non-flexible grid. If a bitmap-based image were to be enlarged, it would lose its sharpness. All edges within the image would appear to be jagged. However there are many algorithms that are built into rips that enlarge images without noticeable jagginess.
File names for bitmap-based images usually consist of extensions such as *.PSD, *.JPG, *GIF, *.TIF, or *.BMP.
In general, bitmap-based files require more computer memory for file storage than vector-based files.
It’s easy to start your next print project. Just send us your files.