how to generate an invoice - linux

I have started freelancing and a client has asked for an invoice.
Do you have a favorite tool for generating invoices? I am after something that I can use from Linux (either a desktop tool or web solution) and generates well formatted Pdf's.
thanks

OpenOffice spreadsheet

Gnucash. It has that.

Quick Books is the defacto standard in this space these days but if you only use linux you can try http://www.quickbooksonline.com

You can give NeoInvoice a try (it's in beta, but stable).

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Chrome extension for speech to text

Which is the best extension for speech-to-text across websites? I want a free tool for voice-to-text conversion. And something that has a good accuracy too?
Here are two extensions you can try. I'll add more if I find any better.
https://chrome.google.com/webstore/detail/voice-in-voice-typing/pjnefijmagpdjfhhkpljicbbpicelgko?hl=en
https://chrome.google.com/webstore/detail/speech-recognition-anywhe/kdnnmhpmcakdilnofmllgcigkibjonof?hl=en
I really like LipSurf ! Did you try it ?

How can I enable spell checker in google colab (colab operates on linux OS)?

Can we enable spell checker for markdown cells in google colab in any way? Please help.
I'm not aware of any way of doing so directly within Google Colaboratory, however a usable workaround might be to install a third party spell-checking browser plug-in such as Grammarly or another similar plug-in that works with your preferred browser, I know this probably wasn't the answer you where looking for, but I'm not aware of any better solutions, I truly apologize! But I hope this was at least somewhat helpful!
Sorry I can't be of more help!
If you're comfortable with PyCharm, you can open your ipynb files in it, and it will highlight any spelling errors.
PyCharm professional edition was used to test this.

How to use VbaDiff to retrieve VBA password?

Chris Spicer mentioned in an old forum that VbaDiff can be used to retrieve passwords in VBA excel, but he doesn't show how? I am totally lost with the HEX option and I would prefer to use Chris' recommendation, but any one can tell me how?
Warmest regards, and apologies if that had been answered in the past, I couldn't find anything.
VbaDiff doesn't retrieve passwords as such. Because it reads from the VBA document, VbaDiff can read the VBA directly. This is because the code is not encrypted in any way.
This was a surprising side-effect of my approach of not using the Visual Basic Editor.
If you're looking for specific help on VbaDiff, you're probably best to contact me directly. My e-mail address is on my profile.
Regards,
Chris

How to develop linux screen saver

Does anyone have a link or document on how to write a screensaver for Linux?
Here's some info on xscreensaver that you may find of use: xscreensaver
also there's an FAQ here.
There's a simple tutorial here too: simplesquares (from the first link)
This might be of interest to you:
http://www.jwz.org/xscreensaver/faq.html#writing-savers
it's from the xscreensavers homepage, it's sort of the de facto screensaver
Google "xscreensaver", and you can learn from its code, rather than starting from scratch.

Can GVIM have a background image?

I wanted to know if I can place a background image into gVim.
Can this be done programatically?
If you must, I'd suggest something along the following lines:
use a compositing window manager (e.g. Compiz on Linux, Windows Vista and Mac OS probably have analogs)
set a desktop background
make your gvim window transparent
rejoice, your text is now harder to read!
According to a trivial google search for "gvim background image", the answer is "no". I'm basing that off this thread from the Vim mailing list. Looks like they might want someone to implement the feature though, so that would make this question legitimately programming related if you asked HOW to do so yourself :)
It's been possible since 2013: see the vim-bgimg plugin.
Like rmeador said, a google search and a perusal of the vim documentation seems to imply that the answer is no. However, take comfort in knowing that you aren't alone in desiring this feature. This guy wanted the same feature and actually implemented it, at least for win32 and vim 6.2. If you really want to do this, I'd give his patches a look as a starting place, although I don't know how much those sections of the vim codebase have changed between 6.2 and the current version (7.2).
No, not yet.
However on win32 and vim 6.2 this guy implemented it.
MacVim supports transparent backgrounds if you are on that OS.

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