Adobe 65011817 User Guide - Page 37

Resize a document and its contents, About resampling, Resampling up, Downsampling

Page 37 highlights

USING FIREWORKS CS4 31 Workspace Resize a document and its contents 1 Do one of the following: • Choose Select > Deselect, click the Pointer tool to display the document properties in the Property inspector, and click the Image Size button in the Property inspector. • Select Modify > Canvas > Image Size. The Image Size dialog box opens. 2 In the Pixel Dimensions text boxes, enter new horizontal and vertical dimensions. (Optional) Change the units of measure. If Resample Image is deselected, you can change the resolution or print size but not pixel dimensions. 3 In the Print Size text boxes, enter horizontal and vertical dimensions for the printed image. 4 In the Resolution box, enter a new resolution for the image. Changing the resolution changes the pixel dimensions. 5 Do one of the following: • To maintain the same ratio between the document's horizontal and vertical dimensions, select Constrain Proportions. • To resize width and height independently, deselect Constrain Proportions. 6 To add or remove pixels when resizing so the image retains approximately the same appearance at a different size, select Resample Image. 7 Select Current Page Only to apply the canvas size change only to the current page. About resampling Fireworks resamples (resizes) images differently than most image-editing applications do. • When a bitmap object is resampled, pixels are added to or removed from the image to make it larger or smaller. • When a vector object is resampled, little quality loss occurs because the path is redrawn mathematically at a larger or smaller size. Because the attributes of vector objects in Fireworks are visible as pixels, some strokes or fills may appear slightly different after resampling. This occurs because the pixels that compose the stroke or fill must be redrawn. Note: Guides, hotspot objects, and slice objects are resized when the document's image size is changed. You can alter the size of a bitmap image by adjusting the resolution or by resampling the image. • When adjusting the resolution, you change the size of the pixels in the image so that more or fewer pixels fit in a given space. Adjusting the resolution without resampling does not result in data loss. • When resampling, you either add or remove pixels: Resampling up Adds pixels to make the image larger. This approach can result in quality loss because the pixels being added do not always correspond to the original image. Downsampling Removes pixels to make the image smaller and results in data loss in the image. This approach always causes quality loss because pixels are discarded to resize the image. Last updated 3/8/2011

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31
USING FIREWORKS CS4
Workspace
La
s
t updated 3/8/2011
Resize a document and its contents
1
Do one of the following:
Choose Select
> Deselect, click the Pointer tool to display the document properties in the Property inspector,
and click the Image Size button in the Property inspector.
Select Modify
> Canvas
> Image Size.
The Image Size dialog box opens.
2
In the Pixel Dimensions text boxes, enter new horizontal and vertical dimensions.
(Optional) Change the units of measure. If Resample Image is deselected, you can change the resolution or print
size but not pixel dimensions.
3
In the Print Size text boxes, enter horizontal and vertical dimensions for the printed image.
4
In the Resolution box, enter a new resolution for the image.
Changing the resolution changes the pixel dimensions.
5
Do one of the following:
To maintain the same ratio between the document's horizontal and vertical dimensions, select Constrain
Proportions.
To resize width and height independently, deselect Constrain Proportions.
6
To add or remove pixels when resizing so the image retains approximately the same appearance at a different size,
select Resample Image.
7
Select Current Page Only to apply the canvas size change only to the current page.
About resampling
Fireworks resamples (resizes) images differently than most image-editing applications do.
When a bitmap object is resampled, pixels are added to or removed from the image to make it larger or smaller.
When a vector object is resampled, little quality loss occurs because the path is redrawn mathematically at a larger
or smaller size.
Because the attributes of vector objects in Fireworks are visible as pixels, some strokes or fills may appear slightly
different after resampling. This occurs because the pixels that compose the stroke or fill must be redrawn.
Note:
Guides, hotspot objects, and slice objects are resized when the document's image size is changed.
You can alter the size of a bitmap image by adjusting the resolution or by resampling the image.
When adjusting the resolution, you change the size of the pixels in the image so that more or fewer pixels fit in a
given space. Adjusting the resolution without resampling does not result in data loss.
When resampling, you either add or remove pixels:
Resampling up
Adds pixels to make the image larger. This approach can result in quality loss because the pixels
being added do not always correspond to the original image.
Downsampling
Removes pixels to make the image smaller and results in data loss in the image. This approach
always causes quality loss because pixels are discarded to resize the image.