FAQs — Frequently Asked Questions

Here you’ll find answers to common print product and print service questions our clients ask. Start by selecting one of the helpful links below. If you don’t see what you need – call us for printing advice or a print quote and speak to one of our digital printing experts.

How do we go about obtaining a quote from Office Assistants Printing & Mailing Services?

The best way to ensure that we get all the information necessary to do an accurate quote is to give us a call at (708) 346-0505 and talk with one of our customer service representatives. You can also email your request or send your digital file and specifications and we will give you an accurate, competitive quote.

What file format should I use when submitting my electronic document for printing?

PDF (Portable Document Format) is the most common and preferred file format for submitting digital documents. With the installation of a PDF print driver on your computer, almost any program can generate a PDF file suitable for printing. Both commercial and free PDF print drivers are available online for download from different sources.

How do I save my design files for best results?

Make them print ready and acceptable for us to print.


At what resolution should I save my photos and graphics?

Photos and graphics should have a resolution of 300 dpi, and text a resolution of 600 dpi. Pictures and graphics taken from the internet are often low resolution, many times in a range of 72 dpi or 96 dpi. These graphics will appear pixilated and blocky when printed.

Also note that you should save all photos in CMYK mode, not RGB mode when possible. Images saved in RGB mode may not print properly.

Why is it important that I look at a proof copy?

A proof is a final copy of your document after all modifications have been completed. It is your last opportunity to make sure that the print job comes out the way you want. By carefully inspecting the proof, you can help us assure an accurate, flawless delivery of your print job on the first run. As well as checking how it looks, it is vitally important to check all spelling, especially names and numbers.

Your signature on the proof is our ok to go ahead with the job as-is.

Why do the printed colors look different from the colors on my screen?

Printers and monitors produce colors in different ways.

Monitors use the RGB (red, green, blue) color model, which usually supports a wider spectrum of colors. Printers use the CMYK (cyan, magenta, yellow, black) color model, which can reproduce most—but not all—of the colors in the RGB color model. Depending on the equipment used, CMYK generally matches 85–90% of the colors in the RGB model.

When a color is selected from the RGB model that is out of the range of the CMYK model, the application chooses what it thinks is the closest color that will match. Programs like Adobe Photoshop will allow you to choose which color will be replaced. Others may not.

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