: Throwing out redundant bitmap information when saving as PDF I am designing something in Illustrator and I use a part of a bitmap (JPG) image. I only need it to cover a specific shape so

@Berryessa866

You can re-rasterize the image directly in Illustrator to get rid of the unused part of the image. Take this clipped image for example:



With your clip group selected go to Object → Rasterize...

Choose your desired resolution (this will rasterize your image to that resoltuion at its current size in your document so make sure it is scaled appropriately or you rasterize at a resolution higher than you need). You can check "Create Clipping Mask" to retain the clipping mask or you can rasterize with a transparent background.



You can see that the actual image dimensions are unchanged, but the clipped areas are removed and you can rasterize to the maximum resolution you require so you should still save on file size.

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@Nimeshi706

The simplest solution is to save a version of the image that is cropped down to just the portion that you need. Then place that into your artwork before saving the PDF. That way you won't be saving any extra data because the unused portion of the image is not there.

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@Ravi4787994

There is no checkbox to achieve this, as AI only works with rectangular bitmaps. If file size is the issue, your best bet is to compress the JPG to something smaller if possible, or take the artwork into Photoshop, as this lets you truly remove parts of a masked image and then save your PDF from PS.

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