ExPDF

Native Elixir PDF reader and writer. Meta-package that includes ex_pdf_core, ex_pdf_components, and ex_pdf_read.

Uses only the Erlang/OTP standard library. No Hex runtime dependencies, no system tools.

Installation

def deps do
  [
    {:ex_pdf, "~> 1.0"}
  ]
end

Writing PDFs

Pdf.build([size: :a4, compress: true], fn pdf ->
  pdf
  |> Pdf.set_font("Helvetica", 12)
  |> Pdf.text_at({200, 200}, "Hello, world!")
  |> Pdf.add_image({100, 100}, "logo.png")
end)
|> Pdf.export()

Reading PDFs

{:ok, doc} = Pdf.Reader.open("invoice.pdf")
{:ok, %Pdf.Reader.Result{} = result, _doc} = Pdf.Reader.read(doc)

result.meta.title       # "Invoice 042"
result.meta.page_count  # 3

for page <- result.pages, line <- page.lines, token <- line.tokens do
  IO.puts(token.text)
end

Declarative templates (Builder)

template = [
  %{type: :row, props: %{
    children: [
      {3, [%{type: :text, props: %{content: "Title", style: %{position: {0, -16}}}}]},
      {1, [%{type: :text, props: %{content: "Brand", style: %{position: {0, -16}}}}]}
    ],
    style: %{position: :cursor, size: {:full, 30}}
  }}
]

Pdf.Builder.render(template, config)

Auto-pagination included — page breaks are inserted automatically when content overflows.

Sub-packages

License

MIT. See LICENSE.md.