On 10/29/2026 9:00 PM, Maria Sophia wrote:
Herbert Kleebauer wrote:
I would suggest to install this app instead:
https://f-droid.org/en/packages/org.primftpd/
It also adds the ability to save shareable files but it is
also an ftpd server. You don't need to use WhatsApp to copy
pdf files to the smartphone but you can just drag&drop
them with the mouse in Windows explorer.
You can also just open the pdf file (for example in
Firefox) and then save the pdf file from the pdf reader.
No need to install an extra app for this purpose (but
the ftpd server is a must have anyhow).
FTP servers work but the problem is we have to get the file out of the app first, and if we can't do that, then there is no file that can be FTP'd.
Now I'm confused. We started with the problem to transfer a pdf file
from the PC to the smartphone. Once copied to the smartphone (for
example by an ftp transfer) you can open the file with any pdf reader,
for example Firefox.
Then the idea was, if already installed, you can also use WhatsApp
to transfer the pdf to the smartphone. But then you can only open
the pdf file in a pdf reader but not directly store it on the disk,
because WhatsApp doesn't provide a "save as". But this isn't a
problem, because the pdf reader provides a "save as".
Also, opening the file in Firefox (or, for that matter, in *anything*) presupposes you can share the file to that app which opens the PDF for viewing and, which saves the PDF (which is the 2nd desired constraint).
But there is absolutely no problem using the combination WhatsApp/Firefox
for pdf files.
Interestingly, Frank astutely pointed out that the desktop WA has a Save To. But the mobile WA does NOT have a save to. Instead, mobiles have Share-To.
If you want to transfer files of any type, Firefox is of no help. Then
you need an app which doesn't interpret the content of the file, but
just offers a "save as".
Luckily, I found a universal solution that turns a share-to into a save-as.
*PSA: I found a GREAT way to add 'save to device' to the Android share sheet (which works on apps like WA that don't want you to share to the device!)*
<https://xdaforums.com/t/psa-i-found-a-great-way-to-add-save-to-device-to-the-android-share-sheet-which-works-on-apps-like-wa-that-dont-want-you-to-share-to-the-device.4806835/>
My answer was: if you install an app for this purpose, better install
https://f-droid.org/en/packages/org.primftpd/
Primitive FTPd not only provides the "save as" function as your app,
but also an FTPd server. This way you don't have to use WhatsApp for
the file transfer but can do it by a simple drag&drop with the mouse
in Windows explorer. Primitive FTPd is a replacement for your suggested
app and you also can use it as FTPd server.
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