progressive jpeg?

Posted on 2007-04-02
Last Modified: 2008-03-10
I have a jpeg image, and I want to work out if it is progressive, or not. Is this possible?
I've tried opening it in Photoshop, but couldn't find anywhere where it has this sort of information.
Any ideas?

Appreciate any help.
Question by:mkofahl
LVL 16

Expert Comment

ID: 18843296
Good question. I tooled around a little with it, but I couldn't find any way to determine it in photoshop either.

Expert Comment

ID: 18844088
if you want to make it progressive, just save it as one.  then you will know!  :)
LVL 11

Accepted Solution

sibgig earned 125 total points
ID: 18844866
ImageMagick ( has a nice tool called 'identify' ( that can be used to tell if an image is progressive.

from the command line:

identify -verbose FILENAME|grep -i interlace

if the result is anything but "none", then it is a progressive jpg. 'identify' can tell you all sorts of things about an image's encoding.
Free Tool: Postgres Monitoring System

A PHP and Perl based system to collect and display usage statistics from PostgreSQL databases.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.


Author Comment

ID: 18847568
Thanks sibgig!
I knew there must be a way to do it, but I just couldn't work it out.

Appreciate your help.
LVL 11

Expert Comment

ID: 18847732
glad i could help
LVL 16

Expert Comment

ID: 18850169
Thats good to know, I guess. You would think Photoshop would be able to do this too!

Featured Post

Free Tool: Port Scanner

Check which ports are open to the outside world. Helps make sure that your firewall rules are working as intended.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
Graphical image required 11 63
Illustrator Rope Brush 6 133
Video Overlay Banners 2 111
Breaking up a large TIFF File 2 19
Things That Drive Us Nuts Have you noticed the use of the reCaptcha feature at EE and other web sites?  It wants you to read and retype something that looks like this.Insanity!  It's not EE's fault - that's just the way reCaptcha works.  But it is …
This article was inspired by a question here at Experts Exchange ( The requirements stated in that question are (1) reduce the file size of a large number of…
In this Micro Tutorial viewers will learn the basic shortcuts and functions in InDesign.
The goal of the tutorial is to teach the user how to use the cropping tool and to straighten there photos so it does not look tilted. You will choose which photo you want to edit, crop it to you liking and make it straight.

789 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question