Ver 3.87
[-] Few minor bugs have been fixed.

Ver 3.86
[-] Few minor bugs have been fixed.

Ver 3.85
[+] Supports dynamic threshold.

Ver 3.81
[+] Modification of image
[+] Delamination of vector and defining different color for layers.
[+] Examination and modification of image information.
[+] Adding a dialogue box for choosing color with the same style of AutoCAD.
[+] Support MDI interface.
[+] Support output PDF.
[+] Support multi-page image.
[+] Support Solid fill mode.
[+] Support image resample.
[-] Fixed some problems loading gray-images and 16-bit tiff.
[-] Few minor bugs have been fixed.