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I'm working on application which is drawing on Canvas similar to Finger Paint demo from Android SDK. My problem is when I'm using PorterDuff.Mode.CLEAR . When drawing and Canvas and if I try to erase something, it's working fine. But if I try to save my image as PNG file the strokes of eraser are coloured black, and I'm not sure why is this happening. Here is an example what I'm doing : @Override protected void onDraw(Canvas canvas) { canvas.drawColor(Color.WHITE); canvas.drawBitmap(mBitmap, 0, 0, mBitmapPaint); canvas.drawPath(mPath, mPaint); } Eraser : case ERASE_MENU_ID: mPaint.setXfermode(new PorterDuffXfermode( PorterDuff.Mode.CLEAR)); return true; And how I'm saving the image : Calendar currentDate = Calendar.getInstance(); SimpleDateFormat formatter= new SimpleDateFormat("yyyyMMMddHmmss"); String dateNow = formatter.format(currentDate.getTime()); File dir = new File(mImagePath); if(!dir.exists()) dir.mkdirs(); File file = new File(mImagePath + "/" + dateNow +".png"); FileOutputStream fos; try { fos = new FileOutputStream(file); mBitmap.compress(Bitmap.CompressFormat.PNG, 100, fos); fos.close(); Toast.makeText(getApplicationContext(), "File saved at \n"+mImagePath + "/" + dateNow +".png", Toast.LENGTH_LONG).show(); } catch (FileNotFoundException e) { Log.e("Panel", "FileNotFoundException", e); } catch (IOException e) { Log.e("Panel", "IOEception", e); } return true; And here is an example of images : here is what my canvas looks like before saving :</p

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