I'm using this command to convert a PDF to a TIF image on stdout:
convert -density 300 -depth 8 -compress lzw my.pdf tif:-
If the PDF has multiple pages, how to convert only the first page?
Found it. Append the page number to the input filename with array-like syntax:
convert -density 300 -depth 8 -compress lzw my.pdf[0] tif:-