Bitmap compress PNG -> JPEG and vice versa in Android?

In addition to the @Sherif elKhatib answer, if you check the documentation: http://developer.android.com/reference/android/graphics/Bitmap.html#compress%28android.graphics.Bitmap.CompressFormat,%20int,%20java.io.OutputStream%29.

This is not doable! Once you convert to JPG you lost the "lossless state of PNG".

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