This topic is part 4 of 4 part series about Security and electronic traces
How to post photos online anonymously?
When using Overgrow.com there is short answer:
Photos you are uploading to Overgrow.com are fully anonymized. System automatically removes any additional information (metadata) besides picture itself from any photo file before saving it to our storage and publishing it in the forums.
If you want to know more, there is long answer:
When you are posting photos online and want to stay in privacy, you better learn about EXIF and other metadata. Practically every digital camera, phone or tablet saves additional information directly into
JPEG photo file on the flash card.
This information is called metadata and can include camera model, its settings, shooting conditions, date taken and also GPS position if available.
There are cases in which you would like to keep this info private. If this is your goal, you should strip all the information before uploading it to web. Overgrow.com does this for you automatically during upload so you can be sure photos are anonymous. If you plan to post photos to other sites, you can easily delete all metadata tags yourself.
Simple way is to use
Photoshop or any basic photo editor or graphic viewer (IrfanView is free for
Windows). Just open the photo and save it again without keeping any original
EXIF data. (see screenshot of
IrfanView also allows
Batch conversion, so you can add multiple photo files or directories of photos and remove all metadata at once.