Online pbm to GRAY, you can put the pbm to GRAY format on your computer, tablet or mobile phone without downloading any software!
Step 1
Upload pbm file
Select files from your computer, Google Drive, Dropbox, URL or by dragging them on the page.
Step 2
Select 'GRAY'
Select output GRAY or any other format as the conversion result (click the Convert button)
Step 3
Download your pbm file
After the conversion you can download your GRAY file and upload it to Google Drive, Dropbox.
pbm : Portable Bitmap Graphic
1-bit black and white image; formatted in text format; basic raster image format in which each pixel is represented by a byte that contains a 1 or 0; 1 represents black and 0 represents white pixels.