<p>Official documentation says all:
<a href="https://electrum.readthedocs.io/en/latest/coldstorage.html" rel="nofollow noreferrer">https://electrum.readthedocs.io/en/latest/coldstorage.html</a></p>
<p>You can not prepare offline transaction on offline computer. You need to prepare it on online computer, sign on offline computer and then &quot;Broadcast&quot; on online computer.</p>
<p>Online computer wallet does not have to have private keys, and in this case it is the best to have &quot;watch-only&quot; wallet on online computer.</p>

CC BY-SA 4.0
2021-03-11T04:26:34.037Z
I hope that is not true, because I want this to be a completely offline wallet without any watch-only wallet on online computer. I'm also afraid to expose the master public key. (but is there any way to derive the master public key from the public address? if that is the case then there is no reason to hide the master public key)
bbnn
CC BY-SA 4.0
2021-03-12T14:20:04.890Z
Master Public Key can be used only to generate public addresses of your wallet (which you created offline). Even if someone steal your master public key, one can only see your balance and transactions, but can not spend it, because there is no way to find private keys from it.
buggy08
CC BY-SA 4.0
2021-03-10T17:01:55.067Z
2021-03-10T17:01:55.067Z
buggy08
<p>I remember that on Electrum, it used to have a <code>Preview</code> button inside the <code>Send</code> tab. By clicking the <code>Preview</code> button I could export the unsigned transaction, and then sign it.</p>
<p>I cannot find this button anymore, I can only see <code>Pay</code> button, and when I clicked it I got a &quot;Not Enough Funds&quot; error. This is because I am doing this in my offline desktop computer (offline wallet).</p>
<p>Is it still possible to create a signed transaction offline using electrum?</p>

CC BY-SA 4.0
2021-03-10T18:18:59.690Z
on the new version that export button is hidden somewhere. It seems that I need to click `Pay` and `Advanced` but I got an error when opening the Advanced window... I'm on Debian using the AppImage electrum 4.0.9
bbnn
<electrum><raw-transaction><coldstorage><signrawtransaction><offline-transactions>
How to create a signed transaction offline using electrum?
bbnn
# How to create a signed transaction offline using electrum?

(Asked by: username_0 on 2021-03-10)

I remember that on Electrum, it used to have a `Preview` button inside the `Send` tab. By clicking the `Preview` button I could export the unsigned transaction, and then sign it.

I cannot find this button anymore, I can only see `Pay` button, and when I clicked it I got a "Not Enough Funds" error. This is because I am doing this in my offline desktop computer (offline wallet).

Is it still possible to create a signed transaction offline using electrum?

**Tags:** electrum, raw-transaction, coldstorage, signrawtransaction, offline-transactions

> **Comments:**
> **username_0**: on the new version that export button is hidden somewhere. It seems that I need to click `Pay` and `Advanced` but I got an error when opening the Advanced window... I'm on Debian using the AppImage electrum 4.0.9  

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## 1 answers

### Answer by username_1 on 2021-03-10. Score: 0

Official documentation says all:
<https://electrum.readthedocs.io/en/latest/coldstorage.html>

You can not prepare offline transaction on offline computer. You need to prepare it on online computer, sign on offline computer and then "Broadcast" on online computer.

Online computer wallet does not have to have private keys, and in this case it is the best to have "watch-only" wallet on online computer.

> **Comments:**
> **username_0**: I hope that is not true, because I want this to be a completely offline wallet without any watch-only wallet on online computer. I'm also afraid to expose the master public key. (but is there any way to derive the master public key from the public address? if that is the case then there is no reason to hide the master public key)  
> **username_1**: Master Public Key can be used only to generate public addresses of your wallet (which you created offline). Even if someone steal your master public key, one can only see your balance and transactions, but can not spend it, because there is no way to find private keys from it.  

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