A4 paper is the standard paper size. You can print invoices, reports, or letters on A4 printing paper. Printing paper can be divided into paper for inkjet printers and paper for laser printers. When purchasing paper, also note the paper weight. Do you want to print an important business letter? Then choose the best luxury paper with a high paper weight. Do you want to print a reminder for yourself? Expensive paper is less important. If you print photos, you can choose between matte and glossy photo paper. Glossy paper can again be subdivided into gloss, high gloss, and semi gloss. Photo paper is heavier than normal paper.