Number of pages refers to the total number of pages in your document. This is automatically calculated when you upload your file.
If your file has 20 pages, the number of pages is 20. Printed double sided this equates to 10 sheets and printed single sided, 20 sheets.
If your file has 50 pages, the number of pages is 50. Printed double sided this equates to 25 sheets and printed single sided, 50 sheets.
How to check how many pages are in your document:
Upload your file and the page count will be stated on the 'Choose Product' page, 'Your Uploaded Files' page 'Configure' page, throughout checkout and within your file library.
Check your PDF - open the file in Adobe Reader and go to 'File' > ' Properties' > 'Description'. The page count is listed at the bottom of the window as 'Number of Pages'.
Check your Microsoft Word file - open the file in Microsoft Word and check the page count shown in the bottom left hand corner. It will state 'Page X of Y' e.g. 'Page 1 of 100'. Export/convert to PDF prior to uploading.