Thanks!
I'll give it a try.
I can't understand why uploading photos needs administration access.
It must be very common my situation where someone creates a site for a group of authors who just need upload permission, not administration access like user configuration, for example.

I have tried the extension and I miss important settings like not allowing an author to delete another author's photos.
The extension just allows selected users uploading photos but it also grants edit and deletion permissions and this is annoying.
A group of authors should be able to upload contents but not to modify or delete other's contributions.
This is my opinion, of course!

Thanks, it works!
But I have another question, once logged in as "generic" it is not possible to change the theme for the presentation nor the language.
These are settings that any user should be able to customise according to his preferences.
Another disturbing point is that uploading photos should get the author name automatically. At least there should be a filter with the uploader user of each photo.
Otherwise the administrator needs to review photo by photo and asking the contributors who uploaded the photo. And this is a nightmare.

Adding more detailed information on my previous post:
The images table of MySQL contains a field "added_by" with the user id.
It would be helpful allowing the webmaster the use of this field or even more allowing the use or an SQL SELECT
But I insist in the need of adding as author by default the uploader user. It is the most logical and useful option.
Apart of that, I disagree having the field "author" of the table "images" filled with the user name.
It should be the user "id" since it is possible changing the name for an existing user and this would produce an inconsistency of the table content.

To "executive":
Adding profile.php to the URL does not work.
A non-administrator user gets an error message when trying to access <piwigo URL>/profile.php

You are not authorised to access the requested page
Identification Home

luisrosety wrote:

But I find it surprising that such basic features need the installation of extensions and adding endings to the URL.
IMHO I think they should be installed by default.

Why? Out of the box Piwigo suits the needs of publishing a photo gallery with different users and permissions. The basic use does not need sophisticated user management functionality, hence code providing such doesn't need to be present. I'm grateful it doesn't bloat my installation. If such is needed by the admin then the admin can install plugins/extensions. There's nothing wrong about that.