Inserting an existing photo from file

I want to add an image to a specific cell on active sheet. The image should fit the cell. I found a piece of code which works perfectly but I get an error message when the sheet is protected. I have to keep the sheet protected with the object editing unchecked before sharing the file with my coworkers.

How can I overcome this problem?

The code I use:

Sub AddPhoto()
    Dim strFileName As String
    Dim objPic As Picture
    Dim rngDest As Range
    strFileName = Application.GetOpenFilename( _
        FileFilter:="Images (*.jpg;*.gif;*.png),*.jpg;*.gif;*.png", _
        Title:="Please select an image...")
    If strFileName = "False" Then Exit Sub
    Set rngDest = Worksheets(ActiveSheet.Name).Range("A10:D20")
    Set objPic = Worksheets(ActiveSheet.Name).Pictures.Insert(strFileName)
    With objPic
        .ShapeRange.LockAspectRatio = msoFalse
        .Left = rngDest.Left
        .Top = rngDest.Top
        .Width = rngDest.Width
        .Height = rngDest.Height
    End With
End Sub

>Solution :

Unprotect at the start of your code, and re-protect at the end.

One way or another, the destination range can’t be protected if you want to put an image in it.
(That’s what protection is protecting against.)