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Become a sponsor to Krzysztof Kowalczyk

Krzysztof Kowalczyk

kjk

Krakow, Poland

I'm a creator of SumatraPDF, a small, fast PDF and ebook reader for Windows.

Your support enables me to spend more time working on SumatraPDF.

@kjk's goal is to have 100 monthly sponsors

So that I can spend more time working on SumatraPDF.

Current sponsors 8

Past sponsors 25

Featured work

sumatrapdfreader/sumatrapdf
SumatraPDF reader

C 14,352
kjk/notionapi
Unofficial Go API for Notion.so

Go 1,825

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7% towards 100 monthly sponsors goal

awatterott and 6 others sponsor this goal

Select a tier

You'll receive any rewards listed in the $20 monthly tier. Additionally, a Public Sponsor achievement will be added to your profile.

$10 a month

Express your support and ensure SumatraPDF will be developed for 15 more years.

$20 a month

Express your support and ensure SumatraPDF will be developed for 15 more years.