Files shoud be PDF - CMYK - 300 dpi.
Graphics Design Checklist:
Graphics Design File Specifications:
Bleeds: A 1/8" border must be added to pictures and designs bleeding to the edge, so that there is no white space or border showing around the artwork. It is also important to keep text at least a 1/4" away from the paper edge or the trim line. This will prevent issues in trimming.
Colours: Print previews are not a safe and sure measuring tool for colour accuracy. Colors on the file might be affected by monitor calibration, screen resolution and lighting, just to name a few. Many Pantone colours show a marked colour shift when converted to four colour process. To achieve the desired colour on press, digital files must reflect accurate colour models and percentage. Please make sure all colours are in CMYK mode for colour accuracy and a better quality output.
Resolution: All images and pictures should be 300 dpi. Rasterized text or logos should be 1200 dpi. Screen values should be between 133 lpi and 150 lpi For Adobe Photoshop, files should be 300 dpi at 100% of actual size for quality offset reproduction. Files should be saved in PDF format (embed all fonts and set the screen value to 133 lpi.)
Digital Proofs: Proofs show layout and design elements, but are not a guarantee of colour accuracy. If colour accuracy is of extreme importance to you, please ask for a hard copy proof. Scan all transparencies and line art at 100% of final size unless data size is prohibitive. If such a case occurs, scan at 1/4 or 1/2 of final size.