Options are:
1). Go to the " page numbers " dialog box and choose your number if you need to in your photo page. Click the " page numbers " button next to the " pages " category on the dialog box.
2). However, a4 is a very common page size especially in printers. Make sure that the page guides are selected.
3). If you're making a dydrhov or just want to make your pictures dark and older in style or more glamorous, it's fine to use a larger sized one. Click the left mouse button on the top right corner.
4). ( as an example, a picture of a car would be 2 x 2. ) select the vertical tab to open inkscape.Choose from options above and answer: What most naturally follows?

How to make a photo page using inkscape
Open inkscape and create a new a4 page.
You can do this by going to the menu item " file] ] new] ] a4 ". You could also create a different size according to the way you want to use your photo page.
Answer:
2).