changing file formats

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Is there a download where I can change a list of a couple hundred .tif files
into .jpg, or vice versa all at once?
 
karenr said:
Is there a download where I can change a list of a couple hundred .tif
files
into .jpg, or vice versa all at once?
Click to expand...

Read this whole message before getting excited and trying what's in the
first paragraph!

You could go to a command prompt and use the REN (rename) command to change
a whole series of files. Using your file extensions, you'd do this:

ren_*.tif _*.jpg (the underlines mean you should put spaces there, not
underlines.)

The asterisk is a wild card that tell the ren command to look for all files
ending in .tif, but beginning with anything.

JUST ONE POSSIBLE PROBLEM: The internal structure of .tif & .jpg files is
not the same. Even though you may have your computer set up to run the same
program for both types, that program may inspect the file for identifying
data and expect that data to match the name. Might be trouble.

What exactly is your goal in changing these names?
 
My goal: I want to retain the tif's for archival purposes but use jpgs to
burn onto a video cd. Do you think your instructions are too dangerous,
especially for a near-amateur like myself?
 
karenr said:
My goal: I want to retain the tif's for archival purposes but use jpgs to
burn onto a video cd. Do you think your instructions are too dangerous,
especially for a near-amateur like myself?
Click to expand...

Renaming the files as he describes isn't going to convert the files at
all. It's just changing the names.

There are programs which will "batch" convert image files, but you may
wish to have control over the compression/size details of the JPGs you
produce.

If you have Microsoft Office 2003 then its Picture Manager utility has a
powerful "export" function that will give you what you need. Paint Shop
Pro also has a batch export function.

PS Make you have a backup of all your files before you touch them with
*anything*!
 
Well, for sure I'll backup all the tif's, after duplicating themto work on.
Unfortunately I still have Office 2000, so don't have that picture function.
I guess my safest bet is one-at-a-time in Photoshop.
 
=?Utf-8?B?a2FyZW5y?= said:
Is there a download where I can change a list of a couple hundred .tif files
into .jpg, or vice versa all at once?
Click to expand...

I dont believe that there is a util that will convert a batch of .tifs
to .jpgs

And, if there was one, I wouldn't trust it. Yes, there are utils that
can change batches of files from on extention to another, but they wont
change the actual makeup of the file.
 
So is this what you're saying: I can change the extension, but just saying
it was a tif and now it's a jpg, that doesn't change it into a jpg? So it
wouldn't be usable for a video cd?
 
That's correct. That is why I recommended Irfanview. It will change the format
in batches. As well as build slide shows etc.

--
Bindar Dundat©
| So is this what you're saying: I can change the extension, but just saying
| it was a tif and now it's a jpg, that doesn't change it into a jpg? So it
| wouldn't be usable for a video cd?
|
| --
| karenr
|
|
| "Plato" wrote:
|
| > =?Utf-8?B?a2FyZW5y?= wrote:
| > >
| > > Is there a download where I can change a list of a couple hundred .tif
files
| > > into .jpg, or vice versa all at once?
| >
| > I dont believe that there is a util that will convert a batch of .tifs
| > to .jpgs
| >
| > And, if there was one, I wouldn't trust it. Yes, there are utils that
| > can change batches of files from on extention to another, but they wont
| > change the actual makeup of the file.
| >
| >
| >
| >
| > --
| > http://www.bootdisk.com/
| >
| >
 
karenr said:
Well, for sure I'll backup all the tif's, after duplicating themto work on.
Unfortunately I still have Office 2000, so don't have that picture function.
I guess my safest bet is one-at-a-time in Photoshop.
Click to expand...

Why is that safest? If you go to Google and search on "batch image
converter" then there are zillions of hits.
 
karenr said:
So is this what you're saying: I can change the extension, but just saying
it was a tif and now it's a jpg, that doesn't change it into a jpg?
Click to expand...

No. If you change your name to Bill Gates, it doesn't make you a
billionaire...
 
=?Utf-8?B?a2FyZW5y?= said:
So is this what you're saying: I can change the extension, but just saying
it was a tif and now it's a jpg, that doesn't change it into a jpg? So it
wouldn't be usable for a video cd?
Click to expand...

Correct. Changing the file extension does not change the type of file it
really is.
 
Plato said:
Correct. Changing the file extension does not change the type of file it
really is.
Click to expand...

Do you know if there's an advantage to the .tif format vs .jpg?
 
Well, with tif being lossless, I think it's good for archiving, then you can
bring out pictures and duplicate them to change or work on and still keep the
original intact. jpg is required for video cd's and emailing.
 
Required for e-mailing? Why? I receive them from a couple of my customers
regularly via e-mail.
 
I suppose it depends on the size of your inbox or whatever. I use xp and
when I right-click it puts it right into the msg. area plus an attachment,
and sometimes when I try to send a tif it takes forever, and also for the
recipient to download.
 
karenr said:
I suppose it depends on the size of your inbox or whatever. I use xp and
when I right-click it puts it right into the msg. area plus an attachment,
and sometimes when I try to send a tif it takes forever, and also for the
recipient to download.
Click to expand...

It's going to depend on the SIZE of the file (whether it is TIF, JPEG or
whatever) not the NATURE of the file.
 
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