render
fun renderPageBitmap(bitmap: Bitmap, pageIndex: Int, startX: Int, startY: Int, drawSizeX: Int, drawSizeY: Int, renderAnnot: Boolean = false)
Render page fragment on Bitmap. This method allows to render annotations.
Page must be opened before rendering.
For more info see PdfiumSdk.renderPageBitmap
Supported bitmap configurations:
ARGB_8888 - best quality, high memory usage, higher possibility of OutOfMemoryError
RGB_565 - little worse quality, twice less memory usage