- Fix some crash bug
"Batch Watermark" is a app which can bulk adding watermark on images with image watermark mode or text watermark mode,and this app is characterized by the following features:
1. specify the position or a random position of watermark.
2. Specify opacity of watermarks.
3. specify rotation angle ranges of watermark.
4. specify the font family of watermark text .
5. specify the font color of text watermark
6. specify text font size of watermark.
7. specify text watermark hollow or solid
