Requirements for map collections
العودة إلى مركز المساعدةمنشورة: 2020年7月15日- High-resolution scans of old maps (300 DPI, or at least 2 Mpix)
- Maps in a zoomable viewer, available online without payments or passwords
- Each map has its own permanent URL, taking users directly to the viewer
- Coordinates for the corners of each map
الوسوم