Overlay/Watermark support

[rohan-paudel]

.onDrawAll{ canvas, pageWidth, pageHeight, displayedPage ->

                val pngResourceId = R.drawable.only_tejilo

                val originalBitmap: Bitmap = BitmapFactory.decodeResource(resources, pngResourceId)

                val alpha = 50 // Set alpha value (0-255); 0 is fully transparent, 255 is fully opaque
                val transparentBitmap: Bitmap = adjustAlpha(originalBitmap, alpha)!!

                // Set width and height for the Bitmap
                val desiredWidth = 313
                val desiredHeight = 160
                val resizedBitmap: Bitmap = Bitmap.createScaledBitmap(transparentBitmap, desiredWidth, desiredHeight, true)

                val left = (pageWidth - resizedBitmap.width) / 2
                val top = (pageHeight - resizedBitmap.height) / 2
                // Draw the PNG bitmap on the canvas
                canvas?.drawBitmap(resizedBitmap, left, top, null)

            }

i want to like this to draw watermark above pdf in the middle of the page

[dshatz]

I will consider to add a way to draw content over the pages.

This issue will be renamed accordingly.