Rendering dynamic PDFs so fast you'll (fr)eek.
Marmot is a PostScript-inspired template renderer for generating small dynamic PDFs and images from structured data.
The initial goal is to render label-sized PDFs from Marmot templates and JSON/JSONL data, with a focus on deterministic batch rendering.
Example below uses currently supported syntax. For full operator details, see PSL syntax documentation.
%!PSL 0.1
page 432 288
slots begin
sku string required
product_name string required
sale_price decimal required
regular_price decimal required
buy_qty int required
get_qty int required
promo_url string required
end
fonts begin
kablammo "fonts/Kablammo.ttf"
end
assets begin
logo image "assets/walmart.png"
end
draw begin
% Card background + border
1 1 1 rgb
0 0 432 288 rect fill
0 0 0 0.08 cmyk
6 strokewidth
8 8 416 272 rect stroke
% Header band
0.92 0.07 0.16 rgb
20 18 392 54 rect fill
(kablammo) font
22 fontsize
center align
middle valign
1 1 1 rgb
$(product_name) titlecase 28 24 376 40 textbox
% Offer callout
(kablammo) font
32 fontsize
left align
middle valign
0.1 0.1 0.1 rgb
(BUY ) $(buy_qty) ( GET ) $(get_qty) 4 concat 26 88 250 44 textbox
% Price stack
(kablammo) font
58 fontsize
left align
top valign
fit textfit
0.92 0.07 0.16 rgb
($) $(sale_price) 2 concat 26 136 220 74 textbox
(kablammo) font
16 fontsize
left align
top valign
fit textfit
0.35 0.35 0.35 rgb
(sans) font
(Reg $) $(regular_price) 2 concat 30 215 180 10 textbox
% Brand image + machine-readable codes
contain imagefit
(logo) 284 220 118 56 image
0 0 0 rgb
$(sku) c128b 26 240 214 28 barcode
$(promo_url) qr 336 140 68 68 barcode
end
Wanna see what this looks like? Try our tutorial.