Octopus Document Waterproof Fountain Pen Inks

Shop the inks below ↓

If you need the guarantees of a true document ink—waterproof, resistant to bleach and ammonia, and tested to DIN ISO 12757-2—then Octopus Document fountain pen inks are fantastic inks.

Read more about Octopus Document Waterproof +

They come in a professional range of basic colors, ideal for the settings that you would need a document ink in. If you need wilder colors (cyan blue or bright magenta), then you may want to look at the Rohrer & Klingner Dokumentus line of document inks instead.

— David, Bottle & Plume

These pigment inks meet the document-resistance requirements of DIN ISO 12757-2. Independent testing covers water and light resistance as well as resistance to bleach, ammonia, ethanol, and hydrochloric acid.

Pen care matters: Don’t let these permanent pigment inks dry inside your fountain pen; dried ink is much harder to clean out. Browse the nine colors below, or explore all Octopus Fluids fountain pen inks. For a larger palette of mixable pigment colors, see Octopus Write & Draw.