jpg compression

R
Posted By
RBB
Aug 17, 2003
Views
315
Replies
5
Status
Closed
in php7, when you have a jpg image open,
then you make any operation and then close the image,
"by just clicking at the x, top right corner," then you have a window that ask you if you want to apply the changes……….up to here is all ok……
but then sometimes comes out the window were you can
chosse the compression level and sometimes does not???
somebody knows wy?

—
Related Tags
compression

How to Master Sharpening in Photoshop

Give your photos a professional finish with sharpening in Photoshop. Learn to enhance details, create contrast, and prepare your images for print, web, and social media.

L
llutton
Aug 17, 2003
I don’t work in jpg mode because when you save, data is lost. I’m only guessing here, but, if you first save a jpg image, and you select the compression level, doesn’t that mean the compression level will stay the same from then on, and you don’t need the level box any more? You only need it the first time? Lynn

in php7, when you have a jpg image open,
then you make any operation and then close the image,
"by just clicking at the x, top right corner," then you have a window that ask you if you want to apply the changes……….up to here is all ok……
but then sometimes comes out the window were you can
chosse the compression level and sometimes does not???
somebody knows wy?
M
M
Aug 17, 2003
The program asks you to choose level of compression only when you save a jpeg image as a copy or you choose "save As" because then it is conmsidered to be a new picture. If you use just "save" there won’t be this window. LLutton wrote in message
I don’t work in jpg mode because when you save, data is lost. I’m only
guessing
here, but, if you first save a jpg image, and you select the compression
level,
doesn’t that mean the compression level will stay the same from then on,
and
you don’t need the level box any more? You only need it the first time? Lynn

in php7, when you have a jpg image open,
then you make any operation and then close the image,
"by just clicking at the x, top right corner," then you have a window that ask you if you want to apply the changes……….up to here is all ok……
but then sometimes comes out the window were you can
chosse the compression level and sometimes does not???
somebody knows wy?
R
RBB
Aug 17, 2003
i also dont work in jpg, but sometimes i have to
the cuestion is another……
i am not talking about save as, or save,
i said about just close the jpg by clicking on the x, top right corner of the image..
WS
Warren Sarle
Aug 17, 2003
"RBB" wrote in message
in php7, when you have a jpg image open,
then you make any operation and then close the image,
"by just clicking at the x, top right corner," then you have a window that ask you if you want to apply the changes……….up to here is all ok……
but then sometimes comes out the window were you can
chosse the compression level and sometimes does not???

If you have previously saved the image from Photoshop,
Photoshop will use the same compression level without
asking you. If you have not saved it from Photoshop
before, then Photoshop is likely to ask you what
compression level to use, although I don’t know if
this is always the case.
S
Stuart
Aug 18, 2003
On a side note, each time you save a jpeg it recompresses the file and because it’s a lossy format it removes information so it is not a good idea to use jpeg for image manipulation. Slowly the quality of the file will deteriorate, so use a different format when manipulating images and only save in jpeg when you want to transfer the file.

Stuart

Warren Sarle wrote:

"RBB" wrote in message

in php7, when you have a jpg image open,
then you make any operation and then close the image,
"by just clicking at the x, top right corner," then you have a window that ask you if you want to apply the changes……….up to here is all ok……
but then sometimes comes out the window were you can
chosse the compression level and sometimes does not???

If you have previously saved the image from Photoshop,
Photoshop will use the same compression level without
asking you. If you have not saved it from Photoshop
before, then Photoshop is likely to ask you what
compression level to use, although I don’t know if
this is always the case.

How to Master Sharpening in Photoshop

Give your photos a professional finish with sharpening in Photoshop. Learn to enhance details, create contrast, and prepare your images for print, web, and social media.

Related Discussion Topics

Nice and short text about related topics in discussion sections