Lua

Extract PDF from JSON

See more JSON Examples

Demonstrates how to extract a PDF file contained within JSON. The file is represented as a base64 string within the JSON. Note: This example can extract any type of file, not just a PDF file. Lua

local chilkat = require("chilkat")

local json = chilkat.JsonObject.new()

-- Load the JSON.
local success = json:load_file("qa_data/json/JSR5U.json")
if not success then
    print(json.last_error_text)
    return
end

-- The JSON we loaded contains this:

--     {
--     ...
--     ...
--       "data": {
--         "content": "JVBERi0xLjQ..."
--       }
--     ...
--     ...
--     }

local sb = chilkat.StringBuilder.new()
json:string_of_sb("data.content", sb)

local bd = chilkat.BinData.new()
bd:append_encoded_sb(sb, "base64")

success = bd:write_file("qa_output/a0015.pdf")