Add Metadata?

General
1

Hi,
I would like to be able to write metadata into image files on OS X. Does anyone know if this is possible with Xojo, or have any pointers; links; example project files which shows how to do this? I’m a bit lost as to where to start.

I know I can do this in other apps, but I want to create my own app, whereby I can simply drop an image file onto a dropspot, then type in the required metadata - then save the data to the image file.

Thank you all in advance.

2

ExifTool can write metadata into images.

You can embed it in your app (resources folder) and use Shell to read and write metadata.

3

Thanks Axel.
I have downloaded and installed the .dmg for OS X.
Unfortunately, I have read and re-read the documentation, but still cannot work out how to add copyright metadata into a dropped image file.

Is this the only way of achieving this?

Thanks.

4

exiftool -copyright=‘Richard Summers’ picture.png

5

Thank you very much Axel - I will look into this again :slight_smile:

6

if you want no backup File use

exiftool -overwrite_original -copyright=‘Richard Summers’ picture.png

7

Fantastic!
This is only for personal use, and I simply wanted to add a copyright metadata tag to my images. Your examples should work perfectly.

Thank you.

8

With some declares this can be done directly within your Xojo application, when you save the image to disk.

9

[quote=190161:@Axel Schneider]ExifTool can write metadata into images.

You can embed it in your app (resources folder) and use Shell to read and write metadata.[/quote]

Do you know if ExifTool can change a picture orientation ? I could not find that in the page you linked to.

10

maybe this helps Derotating JPEGs with exiftool

11

Super. Than k you :slight_smile: