A friend of mine recently got a new position at her company that involves signing multiple legal documents during each business day. She needs to use either blue or black ink and wondered what fountain pen and ink I would suggest. Being a fellow stationery addict, she wanted something much more interesting, and more fraud resistant, to use at the office than a ballpoint pen.

The first fountain pen inks that came to my mind were the Noodler’s Warden’s Series of inks that are among the most advanced fraud resisting inks in the world. The Warden’s ink fraud-proof qualities are special since most fountain pen inks on the market are not waterproof or fraud resistant. According to the Noodler’s website these inks resist “all the known tools of a forger, UV light, UV light wands, bleaches, alcohols, solvents, petrochemicals, oven cleaners, carpet cleaners, carpet stain lifters, and of course…they are also waterproof once permitted to dry upon cellulose paper.” In addition to these characteristics they even resist “potential tools of the forger that have not yet been observed in general use by law enforcement.” The Warden’s Inks come in 3 oz bottles (no cartridges) and are available in these blue and black colors:
- Noodler’s The Warden’s Ink – Bad Blue Heron
- Noodler’s The Warden’s Ink – Bad Belted Kingfisher
- Noodler’s The Warden’s Ink – Bad Black Moccasin

The next thing I thought of was that I wouldn’t want to use my most expensive fountain pens at the office, unless I could somehow put a 24-hour guard on them and made sure they never left my possession. Even well-meaning coworkers have been known to borrow a nice pen and misplace it or forget to return it. Besides the thought of using a less expensive pen at work, if you are using your fountain pen frequently you want something that is durable. The Pilot Metropolitan fountain pen is a great choice. It currently sells for less than $15.00, has a metal cap and barrel that won’t crack and it comes with a converter so that you can use bottled ink. You can’t do much better than that! Pilot Metropolitan fountain pen color choices include:
- Black – Plain, Dots, Zig-Zag, Crocodile
- Gold – Plain, Dots, Zig-Zag
- Silver – Plain, Dots, Zig-Zag
- White – Tiger
- Violet – Leopard

My second choice for an office fountain pen would be a LAMY Safari with an ink converter and a medium nib. Usually signature lines on documents give you a fair amount of room to sign, so a medium nib should make your signature look great. It also prevents you from accidentally poking through the cheap paper you will probably be signing on. Speaking of cheap paper, you may experience some ink bleed-through and feathering when using a fountain pen on poor quality paper. Even though this might be the case, I still personally prefer to use a fountain pen. LAMY Safari standard colors include:

Another thing to think about – are the documents you are signing a single copy or do you need to press firmly to produce multiple copies? In my friend’s case, she is only signing single copies so a fountain pen is just fine. If you are pressing firmly to produce a duplicate copy (or copies) a fountain pen will not work. In this instance you’ll need to go with a roller ball pen or something similar. If you’d still like to use the Noodler’s Warden’s Ink, there are a few roller ball pens on the market that fill with fountain pen ink. You’ll need to make sure you have the proper ink converter if you need one. Some examples of roller ball pens that fill with fountain pen ink are:
- Delta Vintage Rollerball Pen – compatible with Monteverde Mini Converter
- Kaweco Classic Sport or Kaweco Ice Sport Ink Rollers – compatible with Monteverde Mini Converter (limited ink capacity)
- Stipula Bon Voyage Speedball Pen – no converter required – holds lots of ink!

Of course, the requirements for each work environment will vary, and this blog post is not meant to be legal advice. Do you need to sign legal documents at work? What kind of pen do you use? If you use a fountain pen in the office, what kind of fountain pen & ink do you choose?






Great suggestions!
This is absolutely fantastic advice, those would have been (and actually are) my office pens. But I can go wild with inks. no crazy restriction there, but when it does need to LOOK serious, I usually go with Noodler’s Bad Blue Heron.
Have you tested the Noodlers “Luxury Blue” ink which comes
only in one ounce bottles? It’s the only one which seems to glow under UV light. It claims to be “Eternal”. I would like to use this one for fraud and check washing prevention.
Thanks.
Hello William,
We have not tested the ink that you mention. If you have specific questions about it you can contact Noodler’s directly for an accurate answer. Thanks!
Eternal inks usually refer to being archival quality, meaning they wont fade with time. They can be fraud resistant, but they aren’t the same thing.
I wonder why nobody has mentioned Sailor Kiwa Guro, Sei-Boku & J Herbin Encre Authentique. There are other too
Noodler’s Luxury Blue is both bulletproof and eternal – one can easily check it on the producer’s website.
Eternal basically means that it is made to resist the effects of time, the ink has archival properties, being fade resistant and unaffected by humid or acidic conditions.
Its bulletproof properties. on the other hand, guarantee that the ink is waterproof on cellulose-based papers (once fully dry) and that it resists all known tools of forgers, including UV light, bleach, alcohol, and other solvents.
Another really nice (and pretty uncommon) feature of the ink is its fluorescence – it glows under UV light. 🙂