I have tiled png files and those projection is EPSG:4326. I convert projection to EPSG:3857 with below 2 commands:
gdal_translate -of Gtiff -a_ullr 135.00000000000003 36.59788913307022 140.62500000000003 31.952162238024975 -a_srs EPSG:4326 4326.png 4326.tiff
gdalwarp -s_srs EPSG:4326 -t_srs EPSG:3857 4326.tiff 3857.png
Can I make it with 1 command ?