Preview attachment in app without downloading (Proton Mail Android)
It is not possible to preview attachments in the Proton Mail Android app without them being downloaded to the "Downloads" folder of the device, which unneccessarily clutters the folder with content you only meant to view and maybe then decide to download.
The Proton Drive app does let you preview files without them ending up on the visible device storage, so this should be possible.
Related, but really not a real preview feature, at least not on Android:
https://protonmail.uservoice.com/forums/284483-proton-mail/suggestions/7808634-preview-attachments
69
votes
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shared this idea
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Eelco
commented
And this is required in the webversion of Proton Mail as well of course
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bas
commented
Please also in the browser
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none
commented
This seems to work now on Android.
Attachments in the composer cannot be previewed though.