Image resolution

[ABois]

I am trying to print a collage of images on one sheet of paper. When I size my image, how come it appears bigger than it should when I transfer it to my new file?

[Gary Hummell]

I would start with a file that is the finish size of my collage set at a resolution of 300 ppi. I would then size the images based on the 300 ppi resolution and add them to the collage. The result should be just right.

Gary

[Cheesefood]

AB,

It all depends on the resolution of the images involved. A low resolution file (72 dpi) has small pixel dimensions than a high resolution (300 dpi) file. Therefore, when you place a high resolution image in a low resolution environment, you're putting in more pixels, therefore making it appear larger.

For example: a 4" x 4" high resolution file is 1200 x 1200 pixels. At 72 dpi, that 4" x 4" is 288 x 288 pixels. When you move it from one document to another, it's reading pixel size, not inches.

Resolution is like:

Threadcount. The higher the percale, the softer the sheet.

Sandpaper: the higher the number, the finer the grain.

Density: Two object can be the same size, yet completely different weight because of density.

Make sure all your images are high-resolution before you begin, and you'll be happy with the outcome.

[Jennifer_Merrick@adobeforums.com]

Editing images in camera ready pdf files. I work for a newspaper company and 99 percent of pdf files received from ad agencies have tif images at a resolution of 300. I use the touch up object tool to open the image in photoshop, change the resolution and save the image. It updates the pdf file and deletes the clipping of the image. Therefore the image covers all the text placed in the pdf file. Please help.

[MikeKazlow@adobeforums.com]

I believe this was cured in Acrobat 7.

Mike