JPEG or jpg ???

[Colin Red]

hi there,

               In the export Dialog Panel it gives the option to export as JPEG. However on export the file extension is .jpg ..... which is correct ???????

red

[Dan C]

Hi @Colin Red,

I can confirm that .JPEG & .jpg are the same, as outlined here - 

https://kinsta.com/blog/jpg-vs-jpeg/

The reason that Affinity uses JPEG in the export dialog is that this is the file format saved on Mac (which the Affinity apps were first developed for, later adding Windows support), though when creating the actual file on Windows, a .jpg is produced for the reasons outlined in the above link.

I hope this clears things up

[Colin Red]

thank you Dan,

                      Yes I do understand all the reasons mentioned ....... to bad there is no consistency whether to use jpeg or jpg or for that matter upper or lower case as in JPEG or JPG. I create websites and when uploading images I have to be conscious of upper or lower case and whether to use the 3 or 4 letter extension.

[R C-R]

4 hours ago, Colin Red said:

I create websites and when uploading images I have to be conscious of upper or lower case and whether to use the 3 or 4 letter extension.

Why? What happens differently if you use one or the other extension, or lower or upper case?

[Alfred]

19 minutes ago, R C-R said:

What happens differently if you use one or the other extension, or lower or upper case?

Windows servers are case-insensitive, but servers running Linux or any *nix variant are not, so ‘farnsworth.jpg’, ‘Farnsworth.JPG’, and ‘Farnsworth.jpeg’ can (and usually do) all refer to different resources.

[R C-R]

7 minutes ago, Alfred said:

Windows servers are case-insensitive, but servers running Linux or any *nix variant are not, so ‘farnsworth.jpg’, ‘Farnsworth.JPG’, and ‘Farnsworth.jpeg’ can (and usually do) all refer to different resources.

Doesn't that depend on if the file system of the server is case-sensitive or not?

[Alfred]

3 minutes ago, R C-R said:

Doesn't that depend on if the file system of the server is case-sensitive or not?

Er … yes, that’s what I was saying, or trying to say!

12 minutes ago, Alfred said:

Windows servers are case-insensitive, but servers running Linux or any *nix variant are not

 

[R C-R]

21 minutes ago, Alfred said:

Er … yes, that’s what I was saying, or trying to say!

I do not know about other variants, but if the server is running on a Mac I am fairly sure it can use a file system that is not case-sensitive.

EDIT: I also do not know how relevant this old (2001) article might be but I'll share it anyway: 

On Unix File System's Case Sensitivity

[Alfred]

7 hours ago, R C-R said:

I do not know about other variants, but if the server is running on a Mac I am fairly sure it can use a file system that is not case-sensitive.

I’m sure Macs can be used for cloud storage, but I don’t know if they are ever used as web servers.

[Fixx]

1 hour ago, Alfred said:

I’m sure Macs can be used for cloud storage, but I don’t know if they are ever used as web servers.

Not commercially.. more like testing environments or hobbies.

[R C-R]

I wonder what the ratio of case-insensitive Windows vs. case-sensitive Linux or (most?) other *nix variants is, but regardless, I still am not clear about how case sensitivity is an issue. After all, most web sites are built using software that does not require typing file names manually, so wouldn't that eliminate the need to keep track of the case of the filename?

[Colin Red]

Perhaps you would consider me “Old School” but I do not use javascript or software that builds websites on a predetermined style as in say “WIX” as an example. I only use html and css and have been for the past few years. I hand code my work for the pure satisfaction of doing so. I have found that staying consistent in my work that I do not create unexpected errors or problems. I always use lowercase when in a text editor except for the obvious capitalization and in paragraphs and titles etc. My website if you like https://www.williamsartandphotography.com 

Red

[Old Bruce]

@Colin Red, so nice to see legible and most likely easily maintained html. 

[R C-R]

2 hours ago, Colin Red said:

Perhaps you would consider me “Old School” but I do not use javascript or software that builds websites on a predetermined style as in say “WIX” as an example. I only use html and css and have been for the past few years. I hand code my work for the pure satisfaction of doing so. I have found that staying consistent in my work that I do not create unexpected errors or problems. I always use lowercase when in a text editor except for the obvious capitalization and in paragraphs and titles etc. My website if you like https://www.williamsartandphotography.com 

Red

OK, but as I understand it, since you are consistent in how you name files what problem(s) do you foresee having if you upload JPEG files using a mix of both extensions?

[Old Bruce]

.jpeg, .jpg, .JPEG and .JPG will all work fine for displaying images. There is just the problem with the extension being wrong if you are generating the code (before you make the picture file) and you consistently use .JPEG but the Affinity products are producing .jpg. To make life simple I would use the format and case in the code that Affinity produces with the exports. Otherwise it is a case (you see what I did there) of renaming the files extensions using your favourite scripting language. I would go with .jpg as it uses less ink if you are printing it, oh and old Windows servers.