How to rename photos, using EXIF data (with powershell)

You can inspect the EXIF data of a photo by uploading it to here:

You can rename a photo, such that its name is based on the second at which it was taken, in a sortable manner, with this snippet:

$null = [reflection.assembly]::LoadWithPartialName("System.Drawing")
$pic = New-Object System.Drawing.Bitmap($fileName)

# via
$bytearr = $pic.GetPropertyItem(36867).Value # Date Taken
$pic.Dispose() # note... must dispose of the pic, if you wish to be able to rename the file! Otherwise get a fil in use error.

$string = [System.Text.Encoding]::ASCII.GetString($bytearr) 
$exactDate = [datetime]::ParseExact($string,"yyyy:MM:dd HH:mm:ss`0",$Null)
$length = (dir $fileName | % length )
$extensionWithDot = [io.path]::GetExtension($FileName)
$newName = ("{0:yyyy-MM-dd-HH-mm-ss}_{1}_{2}_{3}{4}" -f $exactDate, $device, $location, $length, $extensionWithDot)

write-host "Creating: $newName"
rename-item $fileName $newName

...all of which is wrapped up in function called 'RenamePhoto' which is dotted by my $profile

Note that you can still have problems caused by timezones!


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