Easy way to configure the page size in Google Docs to any of the A sizes: 4A0, 2A0, A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10 and also important envelope sizes: DIN lang (DL), C4 C5, C6, C6/5 Google Docs does not support custom page sizes, with this addon you can set any of the A* page sizes in portrait or landscape orientation. Size Width x Height (mm) Width x Height (in) 4A0 1682 x 2378 mm 66.2 x 93.6 in 2A0 1189 x 1682 mm 46.8 x 66.2 in A0 841 x 1189 mm 33.1 x 46.8 in A1 594 x 841 mm 23.4 x 33.1 in A2 420 x 594 mm 16.5 x 23.4 in A3 297 x 420 mm 11.7 x 16.5 in A4 210 x 297 mm 8.3 x 11.7 in A5 148 x 210 mm 5.8 x 8.3 in A6 105 x 148 mm 4.1 x 5.8 in A7 74 x 105 mm 2.9 x 4.1 in A8 52 x 74 mm 2.0 x 2.9 in A9 37 x 52 mm 1.5 x 2.0 in A10 26 x 37 mm 1.0 x 1.5 in DL 220 x 110 mm C4 229 x 324 mm C5 162 x 229 mm C6 114 x 162 mm C6/5 114 x 229 mm This addon only sets the page size and page orientation. Use File → Page setup to set all other page settings. As that dialog does not support custom page sizes it will reset your page size. Simply use the add-on menu again to set your custom page size. Note. This add-on is meant as a short cut to quickly set any of the DIN A page sizes (A1, A2 ...). If you want to set an arbitrary page size please use https://chrome.google.com/webstore/detail/page-sizer/acgkneeneageffjinlglednnehpelffb