bonjour,
Peut-être le même souci que pour ce post : https://abracadabrapdf.net/forum/index.php/topic,3165.55.html
« There’s a bug in some versions of Acrobat DC that causes the closeDoc method to not work. Try updating to the latest version available. If that doesn’t work you’ll need to look for a workaround. » https://community.adobe.com/t5/acrobat/you-reached-the-maximum-number-of-files-that-can-be-opened/m-p/10801060?page=1#M232639
Mais sans voir, je ne peux pas te dire !
@+
:bonjour: