There is nothing particularly save about your overly complex process. First, I encourage you to save as .tif or .psd instead of .jpg. Every time you save an image as a .jpg you destroy some of the image quality. Open and save again and you destroy a bit more. Use a lossless format for better output.
Second, y are doing nothing by copying and pasting in a new file. Illustrator does not actually open raster files (e.g. .jpg, .tif, .png), Instead it imports and embeds the raster data in a new file. Doubt me? use Illustrator to “open” a .jpg then immediately press Command-S. If you have the file open you would immediately save over the old file without having to specify a filename or a location.
Third, you should not embed raster data in an Illustrator file unless you need to (e.g., to run an effect on it or use it as a symbol or pattern swatch). Place the file and make sure Link is checked in the Place dialogue. If you ever need to alter the original image you will soon find that extracting raster files from within Illustrator (which should be simple) is harder than getting pee out of a pool. Link and you get (1) smaller Illustrator files, (2) faster saves and opens, and (3) easier editing of the source image.
As for the resolution question: Is Pixel Preview on in the View menu? Is there an effect applied to the image and, if so, what is the Document Raster Effect setting? Can you provide a screen shot showing the image in Photoshop and the same image at the same size in Illustrator so we can see for ourselves the difference in resolution? use the camera icon in a reply to attach the screen grab(s).
Hi, OK if we forget all the ins and outs of copying and pasting, here's what happens:
If I simply open any bitmap in Illustrator CS5 and view it at 100% by default, it looks jagged.
The same image when viewed at 100% in Photoshop, looks smooth.
This is true for any image resolution and size.
I've done this 1000 times in CS2 without having this problem.
I've tried ticking Pixel Preview under View, no difference. Anti Aliased Artwork under General Preferences also dont help.
See samples below. If you look closely at the bottom image outlines (screenshot from Illustrator at 100%) , you'll see its jagged, not as smooth as the top image.
Hi I didnt see your reply. Its a jpg.
I wonder if its a preview thing in CS5, as mentioned it looks bad at 100% on screen in Illustrator.(Pixel Preview is on)
A saved PDF also looks bad at 100%
It seems to print OK though from both Illustrator and the PDF.
The problem is that I need to compile a PDF for viewing and would at least like the bitmaps to look good at 100% viewing scale.
This is a definite flaw in Illustrator CS5. In earlier versions of Illustrator I had no problem with the appearance of placed BMP images, when exporting AI files for proofing purposes. Now, with CS5, placed BMPs appear jagged when the AI file is exported (whether to PDF, high-rez JPEG, etc.)
Does Adobe have any plans to fix this flaw? Being able to provide quality proofs to clients seems a basic function of a professional-level program. I now have clients asking me why proofs look so low resolution.
Note the background illustration in the two examples below...
Exported from Illustrator CS3:
Exported from Illustrator CS5:
I am on CS3 so I don't have the problem, but I am wondering whether things get better with Overprint Preview in CS5.
For example when viewing placed EPS files (which you don't see often these days) a switch to Overprint Preview makes a world of difference. Placed images in other formats also get marginally better and colour rendering is more precise both in images and vector work..
I have been struggling with this problem. I am working with several publications that use the same photo, some large and some small. I have created one Photoshop document for all of them and then scale the photos as I needed it. Before CS5 this was never a problem. Now however, the smaller scaled photos look very pixelated and low res in Illustrator (something I could live with) and when exported as a jpeg for a proof (something I cannot live with).
The photos are put into Illustrator with the place command.
Has there been any resolution to this problem since a year ago when this thread started?
I have/had the same problem, wondering what is going wrong.
I double checked to see that the images had the right pixel dimensions in Illustrator as they have in Photoshop
and noticed that many times (if not always) illustrator scales the placed bitmaps very slighty (e.g. 800.003 x 600.001 instead of a clean 800x600). So I unchecked the lock aspect ratio and dialed in the correct pixel values and it seems to work, the bitmap images look crisp on the exported PDF at 100%.
I 'll have to test this on more images and I hope it fixes the problem.
Hi, thanks all.
If I am saving something for web (like an infographic) to JPG or PNG the images look jagged, so it isn't a preview thing.
AntoineM, where is the "lock aspect ratio"? I know of the constrain proportions option.
tridentDV: That seems to do the trick, when I have text however, that makes the text looks jagged, although it doesn't seem as bad as it looks on images if I don't use art optimised.
In the end it seems to be that if I want a mix of raster and vector InDesign is the better choice.