pingo optimizer
pingo, a fast image optimizer
pingo is an experimental, fast Web PNG/JPG optimizer which offer lossless, visually lossless or lossy compression. it performs image reductions over iterations thanks to recursive multi-processing and multithreading systems
version:
0.96z6 — zip, windows xp/7/8/10 — free — 32-bit download
manual (v0.96)
important
always do backup before using pingo. try on test files/folders especially made for this. understand that this tool is processing all files in subfolders. it could convert/reduce the visual quality of your files and overwrite them without any backup or warning
see some examples for pingo usage
| options | range | type | effect |
|---|---|---|---|
| -auto/-auto=N | — | auto | [1-100] auto-select lossy type/format | -s0 to -s8 | 0 — 8 | v.lossless | v.lossless optimization/compression level |
| -lossless | — | lossless | enable strict lossless optimization |
| -fast, -strip=N | 0 — 3 | lossy | remove/set chunks/markers from PNG/JPG |
| PNG | |||
| -pngquality=N | 1 — 100 | lossy | auto-select lossy type (it picks filter or palette) |
| -pngfilter=N | 1 — 100 | lossy (type) | use lossy filter to transform data |
| -pngcolor=N | 1 — 100 | lossy (type) | reduce the number of colors |
| -pngpalette=N | 1 — 100 | lossy (type) | quantize to paletted (256 colors max) |
| -pngnotrans | — | lossy | convert RGB for a white background, remove transparency |
| JPG | |||
| -jpgquality=N | 1 — 100 | lossy | set JPG quality |
| -jpgsample=N | 0 — 2 | lossy | set JPG subsampling |
| -jpgtable=N | 0 — 5 | lossy | set JPG quantization table |
| -jpgconvert | — | lossy | convert PNG to JPG (RGB for a white background) |
| no[value] | effect |
|---|---|
| -nopng | disable PNG processing |
| -nojpg | disable JPG processing |
| -nopngstrip | do not remove PNG chunks |
| -nojpgstrip | do not remove JPG markers |
| -nodate | restore modification date |
| -noalpha | do not change RGB if alpha is 0 |
| -notrials, -compress, -c |
just do recompression |
| -nocompression, -nc | encode uncompressed PNG datastream |
| -nodithering | disable diffusion (palette/filter) |
| -norotation | ignore JPG orientation tag |
| -noconversion | do not convert PNG to JPG in auto |
| -nocheck | do not change extension according to file header |
| miscellaneous | effect |
|---|---|
| -uncompress, -u | just do uncompression |
| -reset | force filter none, remove RGB data if alpha is 0, uncompress |
| -soft | lossy but high quality presets |
| -grayscale | convert image data to grayscale |
| -rgb: N N N | set red, green and blue (0-255); enabled with -pngnotrans or -jpgconvert |
| -nomulti, -low | disable multiblocks/multiprocessing |
| -multiprocess=N | enable or disable the multiprocessing (default enabled) |
| -multiblocks=N | set the number of threads (default: 4) |
| -verbose=N | set the verbose level (0=quiet, 1=result, 2=result and %, 3=result, % and size) |
| -q, -quiet | set verbose to 0 |