is Adobe proprietary?

[divxdude]

acutally my question is deepr than that. Is there a "technology" in Acrobat encoded photo
files (PDF) that does not allow the full quality of the image to be extracted?

 

[JonnyBlaze]

are you use adobe reader? tell me each step your doing and what program your doing it with.

 

[divxdude]

sorry Jonny, i think i was mistaken.
however would still like to know if there are quirks or potential porblems with .pdf as a photo format.
certainly seems inconvenient if you plan to do any work to them.

 

[Nothinman]

Why in the hell would you put an image into a PDF if you're just looking to deliver the image by itself?

 

[0roo0roo]

its a final distribution document format. no one uses it as a photo format.
http://en.wikipedia.org/wiki/Portable_Document_Format

 

[Gooberlx2]

Could be a useful method if he wants to be sure that people aren't going to use his work/photos in some other way...but doesn't want to watermark the images. Maybe I'm wrong but if you lock the PDF, then there's nothing a person can do with the file except view it right? The only way to obtain a workable image is by screen capturing, which degrades quality and is limited by both monitor resolution and the quality of the program's image resize/scaler (which isn't very good in PDF IIRC).

I dunno, doesn't seem like a bad idea for certain circumstances.

 

[Jiggz]

Originally posted by: Gooberlx2
Could be a useful method if he wants to be sure that people aren't going to use his work/photos in some other way...but doesn't want to watermark the images. Maybe I'm wrong but if you lock the PDF, then there's nothing a person can do with the file except view it right? The only way to obtain a workable image is by screen capturing, which degrades quality and is limited by both monitor resolution and the quality of the program's image resize/scaler (which isn't very good in PDF IIRC).

I dunno, doesn't seem like a bad idea for certain circumstances.

Probably the only reason why you will use PDF format for photos! Of course, you can use pdf format for photos except the quality degrades but it'll prevent others from editing your photos.

 

[Nothinman]

The only way to obtain a workable image is by screen capturing, which degrades quality and is limited by both monitor resolution and the quality of the program's image resize/scaler (which isn't very good in PDF IIRC).

You would still get a pixel for pixel duplication of the image by doing a screen capture so it wouldn't buy you anything.

 

[Gooberlx2]

Originally posted by: Nothinman

The only way to obtain a workable image is by screen capturing, which degrades quality and is limited by both monitor resolution and the quality of the program's image resize/scaler (which isn't very good in PDF IIRC).

You would still get a pixel for pixel duplication of the image by doing a screen capture so it wouldn't buy you anything.

If they're large DSLR images then likely they're likely to be a higher resolution than the monitor's. So you lose out on resolution, which a lot of people might not care about. But the scaler in PDF is crappy...scaled-down images are pixelated and garbage, and who wants to work on an ugly image? At least the last I remember they were. Maybe things have changed it more recent versions.

I thought the print-screen screen capture method made things look softer...but I just tried it on my desktop and it looks the same. So I'm definitely wrong there.

 

[Nothinman]

If they're large DSLR images then likely they're likely to be a higher resolution than the monitor's. So you lose out on resolution, which a lot of people might not care about. But the scaler in PDF is crappy...scaled-down images are pixelated and garbage, and who wants to work on an ugly image? At least the last I remember they were. Maybe things have changed it more recent versions.

But they still get the same image that you sent them whether the PDF compressor made it ugly or not so it offers zero protection.

 

[aakerman]

Goober: You can open PDFs in photoshop.. so no need to worry about monitor size etc.