Adobe 38039927 User Guide - Page 277

Optimizing JPEGs

Page 277 highlights

ADOBE FIREWORKS CS3 272 User Guide • Click a color in the document. To add or remove transparent colors: 1 Click the Preview, 2-Up, or 4-Up button at the upper left of the Document window. In 2-Up or 4-Up view, click a view other than the original. Note: You can add or remove transparent colors in Original view but won't be able to see your results until you display a preview. 2 In the Optimize panel, click the Add Color to Transparency or Remove Color from Transparency button. 3 Do one of the following to select a color to add or remove from transparency: • Click a color swatch in the Optimize panel color table. • Click a color in the preview. To make an image background transparent: 1 Click the Preview, 2-Up, or 4-Up button at the upper left of the Document window. In 2-Up or 4-Up view, click a view other than the original. 2 Select GIF as the file format in the Optimize panel, and select Index Transparency from the Transparency pop-up menu. The canvas color is made transparent in the preview, and the graphic is ready for export. Interlacing: Downloading gradually When viewed in a web browser, interlaced images appear gradually while they are downloading. They display at a low resolution first and then transition to full resolution by the time the download is complete. Note: This option is available only for GIF and PNG file formats. You can get similar results with a JPEG by making it progressive. For more information, see "Optimizing JPEGs" on page 272. To make a GIF or non-Fireworks PNG interlaced: ❖ Select Interlaced from the Optimize panel Options menu. Optimizing JPEGs Using the Optimize panel, you can optimize JPEGs by setting compression and smoothing options. JPEGs are always saved and exported in 24-bit color, so you can't optimize a JPEG by editing its color palette. The color table is empty when a JPEG image is selected. As you experiment with different optimization settings, you can use the 2-Up and 4-Up buttons to test and compare a JPEG's appearance and estimated file size. For more information on using the document preview buttons, see "Previewing and comparing optimization settings" on page 263. Note: In Fireworks CS3, JPEGs can be saved directly from within the "Save As" dialog box. This behavior differs from that in previous versions of Fireworks. For more information, see "Saving documents in other formats" on page 23.

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
  • 73
  • 74
  • 75
  • 76
  • 77
  • 78
  • 79
  • 80
  • 81
  • 82
  • 83
  • 84
  • 85
  • 86
  • 87
  • 88
  • 89
  • 90
  • 91
  • 92
  • 93
  • 94
  • 95
  • 96
  • 97
  • 98
  • 99
  • 100
  • 101
  • 102
  • 103
  • 104
  • 105
  • 106
  • 107
  • 108
  • 109
  • 110
  • 111
  • 112
  • 113
  • 114
  • 115
  • 116
  • 117
  • 118
  • 119
  • 120
  • 121
  • 122
  • 123
  • 124
  • 125
  • 126
  • 127
  • 128
  • 129
  • 130
  • 131
  • 132
  • 133
  • 134
  • 135
  • 136
  • 137
  • 138
  • 139
  • 140
  • 141
  • 142
  • 143
  • 144
  • 145
  • 146
  • 147
  • 148
  • 149
  • 150
  • 151
  • 152
  • 153
  • 154
  • 155
  • 156
  • 157
  • 158
  • 159
  • 160
  • 161
  • 162
  • 163
  • 164
  • 165
  • 166
  • 167
  • 168
  • 169
  • 170
  • 171
  • 172
  • 173
  • 174
  • 175
  • 176
  • 177
  • 178
  • 179
  • 180
  • 181
  • 182
  • 183
  • 184
  • 185
  • 186
  • 187
  • 188
  • 189
  • 190
  • 191
  • 192
  • 193
  • 194
  • 195
  • 196
  • 197
  • 198
  • 199
  • 200
  • 201
  • 202
  • 203
  • 204
  • 205
  • 206
  • 207
  • 208
  • 209
  • 210
  • 211
  • 212
  • 213
  • 214
  • 215
  • 216
  • 217
  • 218
  • 219
  • 220
  • 221
  • 222
  • 223
  • 224
  • 225
  • 226
  • 227
  • 228
  • 229
  • 230
  • 231
  • 232
  • 233
  • 234
  • 235
  • 236
  • 237
  • 238
  • 239
  • 240
  • 241
  • 242
  • 243
  • 244
  • 245
  • 246
  • 247
  • 248
  • 249
  • 250
  • 251
  • 252
  • 253
  • 254
  • 255
  • 256
  • 257
  • 258
  • 259
  • 260
  • 261
  • 262
  • 263
  • 264
  • 265
  • 266
  • 267
  • 268
  • 269
  • 270
  • 271
  • 272
  • 273
  • 274
  • 275
  • 276
  • 277
  • 278
  • 279
  • 280
  • 281
  • 282
  • 283
  • 284
  • 285
  • 286
  • 287
  • 288
  • 289
  • 290
  • 291
  • 292
  • 293
  • 294
  • 295
  • 296
  • 297
  • 298
  • 299
  • 300
  • 301
  • 302
  • 303
  • 304
  • 305
  • 306
  • 307
  • 308
  • 309
  • 310
  • 311
  • 312
  • 313
  • 314
  • 315
  • 316
  • 317
  • 318
  • 319
  • 320
  • 321
  • 322
  • 323
  • 324
  • 325
  • 326
  • 327
  • 328
  • 329
  • 330
  • 331
  • 332
  • 333
  • 334
  • 335
  • 336
  • 337
  • 338
  • 339
  • 340
  • 341
  • 342
  • 343
  • 344
  • 345
  • 346
  • 347
  • 348
  • 349
  • 350
  • 351
  • 352
  • 353
  • 354
  • 355
  • 356
  • 357
  • 358
  • 359
  • 360
  • 361
  • 362
  • 363
  • 364
  • 365
  • 366
  • 367
  • 368
  • 369

ADOBE FIREWORKS CS3
User Guide
272
Click a color in the document.
To add or remove transparent colors:
1
Click the Preview, 2-Up, or 4-Up button at the upper left of the Document window. In 2-Up or 4-Up view, click a
view other than the original.
Note:
You can add or remove transparent colors in Original view but won’t be able to see your results until you display
a preview.
2
In the Optimize panel, click the Add Color to Transparency or Remove Color from Transparency button.
3
Do one of the following to select a color to add or remove from transparency:
Click a color swatch in the Optimize panel color table.
Click a color in the preview.
To make an image background transparent:
1
Click the Preview, 2-Up, or 4-Up button at the upper left of the Document window. In 2-Up or 4-Up view, click a
view other than the original.
2
Select GIF as the file format in the Optimize panel, and select Index Transparency from the Transparency pop-up
menu.
The canvas color is made transparent in the preview, and the graphic is ready for export.
Interlacing: Downloading gradually
When viewed in a web browser, interlaced images appear gradually while they are downloading. They display at a
low resolution first and then transition to full resolution by the time the download is complete.
Note:
This option is available only for GIF and PNG file formats. You can get similar results with a JPEG by making it
progressive. For more information, see “Optimizing JPEGs” on page 272.
To make a GIF or non-Fireworks PNG interlaced:
Select Interlaced from the Optimize panel Options menu.
Optimizing JPEGs
Using the Optimize panel, you can optimize JPEGs by setting compression and smoothing options.
JPEGs are always saved and exported in 24-bit color, so you can’t optimize a JPEG by editing its color palette. The
color table is empty when a JPEG image is selected.
As you experiment with different optimization settings, you can use the 2-Up and 4-Up buttons to test and compare
a JPEG’s appearance and estimated file size. For more information on using the document preview buttons, see
“Previewing and comparing optimization settings” on page 263.
Note:
In Fireworks CS3, JPEGs can be saved directly from within the “Save As” dialog box. This behavior differs from
that in previous versions of Fireworks. For more information, see “Saving documents in other formats” on page 23.