exiv2: add page (#4093)

pages/common/exiv2.md

@@ -0,0 +1,28 @@
+# exiv2
+
+> Image metadata manipulation tool.
+> More information: <https://www.exiv2.org/manpage.html>.
+
+- Print a summary of the image Exif metadata:
+
+`exiv2 {{path/to/file}}`
+
+- Print all metadata (Exif, IPTC, XMP) with interpreted values:
+
+`exiv2 -P kt {{path/to/file}}`
+
+- Print all metadata with raw values:
+
+`exiv2 -P kv {{path/to/file}}`
+
+- Delete all metadata from an image:
+
+`exiv2 -d a {{path/to/file}}`
+
+- Delete all metadata, preserving the file timestamp:
+
+`exiv2 -d a -k {{path/to/file}}`
+
+- Rename the file, prepending the date and time from metadata (not from the file timestamp):
+
+`exiv2 -r {{'%Y%m%d_%H%M%S_:basename:'}} {{path/to/file}}`