I often get clients who don't know how to publish their final artwork for print so I am posting this in hope it will help those people.
If you are creating any print file such as a flyer or brochure; you will need to know a few things that the printers need in order to print your artwork without problems.
Firstly, all images you use in your document need to be 300dpi. 300dpi is always used for print and 72dpi is always used for screen/digital.
When setting up your document in your design program you need to ensure you create the artwboard at the exact size you want - we will use an A5 flyer for this example.
You would create the artboard at 210x148mm and then ensure you add bleed to the artboard. Bleed is used by printers to ensure that there are no white edges on your finished product which will leave it looking unprofessional. Usually a safe bleed is 5mm. This means that there is an added 5mm to each edge of your artboard.
When creating your artwork on the artboard you need to ensure the artwork follows through into the bleed area.
Once your design is ready to save to print, you will need to save to PDF. Make sure you specify the bleed must be taken into account when exporting and also to add crop marks to show the printers where the document needs to be trimmed.
Hope you find this helpful and let me know if you have any other questions on this topic.