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I have a file which is 1020px X 200px Artboard/Document dimensions and the drawings coves the whole artboard as follows.


When I "Export" the file as "png" (File>Export) it's dimensions change to 4250px X 458px as follows.


However when I use "Save for Web & Devices" (File>Save for Web & Devices" and save as "png" it's dimensions remain the same i.e., 1020px X 100px as follows.

Save As

Any idea why this is happening? Files are saved with similiar options viz. png-24 format, clip to artboard, save as background, interlaced, rgb color profile.

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2 Answers 2

up vote 3 down vote accepted

Tick the "Use Artboards" option when exporting if you want image to match artboard sizes. Otherwise, the image exports at it's given size, not the artboard size.

The vast difference in export sizes could be due to raster effects like the drop shadow.

Also, (based on comments below) a file exported at 300ppi will be much larger in terms of dimensions than a file exported at 72ppi. Since png files don't store data such as ppi, the file dimensions are adjusted to accomodate a higher resolution.

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When checking the option of "Use Artboards" in the Export, a new size of 4250px X 417px is acheived. The drop shadow is only 5px on x-axis with 5px blur. Also when unchecking the option of "Clip to Artboard" in image size tab under "Save for Web & Devices", the size shows 1020px X 110px. –  Jawad Aug 26 '12 at 21:44
Try clearing guides. Other than that, all I can think is there must be some other item in the file causing the size increase. A hidden layer or object maybe? –  Scott Aug 26 '12 at 21:46
Clearing guides does not help. Not also completely deleting them. Also I have checked very closely by selecting all and also searching in the layers panel. Only 5 objects and all have small dimensions as shown in the layers panel. –  Jawad Aug 26 '12 at 21:54
Maybe a resolution issue? Exporting as jpeg has size of 9500px X 980px. –  Jawad Aug 26 '12 at 21:59
Could be.. Check Effects > Document Raster Effects Settings –  Scott Aug 26 '12 at 22:03

To match the same size of the artboard you must export it with a resolution of 72ppi. If you change it to 150ppi or 300ppi (or any other), the PNG will increase its size in order to fit that resolution

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thanks.......... –  Jawad Aug 23 '13 at 17:17

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