DocGen Guide 128 tools · prices checked 20 Oct 2026 Find my tool
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Built-in forms to PDF for letters: 11 document generation tools

For letters, we list 11 tools that turn answers to their own forms into a PDF. The lowest paid starting price is $19.50 a month, from Documentero. The first three in our order are Knackly, Docxpresso and MyCase Document Automation.

Tools
11
With USD price
6, from $19.50
Free tier
4
Direct / via Zapier
8 / 3
Checked
20 Oct 2026
  1. 01
    Knackly knackly.io

    Legal document automation.

    Outputs DOCX, PDF Template Word Also reads API, Zapier/Make/n8n
    $209 / mo
  2. 02
    Docxpresso docxpresso.com

    EUR pricing shown as Core 2500 EUR/user/mo (likely 25.00, formatting unclear).

    Outputs PDF, DOCX Template Word Also reads API
    $27 EUR 25/user, converted
  3. 03
    MyCase Document Automation mycase.com

    Legal PM with Word-based automation (Woodpecker redirects here).

    Outputs DOCX, PDF, e-sign documents Template Word
    $79 / mo
  4. 04
    Zoho Writer zoho.com

    Free editor with Document Automation add-on credits (200/mo free).

    Outputs PDF, DOCX, e-sign documents, email Template Word Also reads Zoho, CSV
    Not published free tier
  5. 05
    docassemble docassemble.org

    MIT guided-interview and document assembly.

    Outputs PDF, DOCX Template Word, PDF form Also reads API
    Free
  6. 06
    HotDocs mitratech.com

    Owned by Mitratech. Desktop and cloud.

    Outputs DOCX, PDF Template Word Also reads API
    On request
  7. 07
    Clio Draft clio.com

    Formerly Lawyaw. Word templates and court forms.

    Outputs DOCX, PDF Template Word, PDF form
    Not published
  8. 08
    Smokeball smokeball.com

    Legal practice management with document automation and form library.

    Outputs DOCX, PDF Template Word
    Not published
  9. 09
    Gavel Editor's pick via Zapier gavel.io

    Formerly Documate (Documate Inc. dba Gavel).

    Outputs DOCX, PDF Template Word, PDF form Also reads API, Zapier/Make/n8n
    $83 / mo
  10. 10
    Documentero via Zapier documentero.com

    Micro $19.50/mo shown; price formatting unclear on page.

    Outputs DOCX, XLSX, PDF Template Word Also reads Google Sheets, CSV, Excel, API +1
    $19.50 / mo, cheapest here
  11. 11
    Crove via Zapier crove.app

    Individual $33/mo billed $390/yr.

    Outputs PDF, DOCX, e-sign documents Template Word, Visual builder Also reads API, Zapier/Make/n8n
    $33 / mo

What differs for built-in forms

For letters delivered as PDF, templates are built in Word (11), a fillable PDF form (3) and a visual builder (1). Among them, 3 need Zapier, Make or n8n to read answers to their own forms, so they sit after the tools with a direct connection. Of these, 4 have a free tier.

Besides PDF, these tools for letters also write DOCX (11), e-sign documents (3) and XLSX (1). A submission to the tool's own form builds the document from the answers. Published starting prices run from $19.50 to $209 a month, the top end from Knackly. Prices were checked on 20 Oct 2026.

Nearby pages

Broader list: Built-in forms to PDF (26 tools).

Related lists: Built-in forms to PDF for contracts (25 tools), Built-in forms to PDF for onboarding packs (8), Built-in forms to PDF for certificates (7), Built-in forms to PDF for invoices (7), Built-in forms to DOCX for letters (12).

How to generate PDFs from built-in forms: a step-by-step guide, updated 21 Oct 2026.

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