PDF generators for JSON API
These 63 PDF generators work with JSON sent to an API and save the result as a PDF file. Api2Pdf has the cheapest paid plan here, at $1 a month. A free plan is available on 39 of the 63.
- Tools
- 63
- With USD price
- 42, from $1
- Free tier
- 39
- Direct / via Zapier
- 55 / 8
- Checked
- 20 Oct 2026
- 01
Enterprise Salesforce document generation.
Outputs PDF, DOCX, XLSX, PPTX, HTML, email Template Word Also reads Salesforce G2 4.4 (849)Not published - 02
Formerly WebMerge. Only in Suite plan, $250/mo paid annually, 250 deliveries/mo.
Outputs PDF, DOCX, PPTX, e-sign documents Template Word, PDF form, Visual builder Also reads Salesforce, HubSpot, Airtable, built-in forms +2 G2 4.5 (148)$250 / mo - 03
Silver $39/mo billed annually.
Outputs PDF, e-sign documents Template Visual builder Also reads Airtable, HubSpot, Coda, Zapier/Make/n8n G2 4.7 (9)$39 / mo - 04
Professional $19/mo yearly, $29 monthly.
Outputs PDF, Google Docs, email Template Google Docs, Word, PDF form Also reads Airtable, Notion, Google Sheets, Google Forms +2$19 / mo - 05
Priced in EUR: Essential EUR 29/mo (EUR 26 annual).
Outputs PDF, DOCX, XLSX, PPTX, HTML Template Word Also reads Airtable, Zapier/Make/n8n$28 EUR 26, converted - 06
PDF fill, generate, e-sign API.
Outputs PDF, e-sign documents Template PDF form, HTML$99 / mo - 07
EUR pricing: Starter EUR 5/mo, 300 docs.
Outputs PDF Template HTML Also reads Zapier/Make/n8n$5 EUR 5, converted - 08
Fluent (Windward) windwardstudios.comFormerly Windward Studios, acquired by PDFTron (now Apryse).
Outputs PDF, DOCX, XLSX, PPTX, HTML Template Word Also reads Salesforce, Excel G2 4.4 (77)On request - 09 Xpertdoc xpertdoc.com
CCM and document generation with Microsoft Dynamics CRM connector.
Outputs PDF, DOCX, email, e-sign documents Template Word G2 4.3 (26)On request - 10
SourceToDocs sourcetodocs.comData to Google Slides and Docs.
Outputs Google Slides, Google Docs, PDF, PPTX, DOCX, HTML Template Google Docs Also reads Airtable, Google Sheets, CSV$19 / mo - 11
Knackly knackly.ioLegal document automation.
Outputs DOCX, PDF Template Word Also reads built-in forms, Zapier/Make/n8n$209 / mo - 12
Syncfusion Document SDK syncfusion.com$1,199/developer/yr (computed $99.92/mo).
Outputs PDF, DOCX, XLSX, PPTX Template Word$99.92 / mo
12 of 63 shown Show the other 51Hide the other 51
- 13
Templafy templafy.comAI document agents in Microsoft Office.
Outputs PPTX, DOCX, PDF Template Word Also reads Salesforce$40 / mo - 14
APITemplate.io apitemplate.ioPDF Basic $19 or $24 (billing labels unclear).
Outputs PDF Template Visual builder, HTML Also reads Airtable, Zapier/Make/n8n$19 / mo - 15
Bannerbear bannerbear.comImage, PDF and video API.
Outputs PDF Template Visual builder Also reads Airtable, Zapier/Make/n8n$49 / mo - 16
CraftMyPDF craftmypdf.comLite $29/mo, 1,200 PDFs. Free 50/mo.
Outputs PDF Template Visual builder Also reads Airtable, Zapier/Make/n8n$29 / mo - 17
Docmosis docmosis.comCloud Professional $49/mo, 4,000+ pages.
Outputs PDF, DOCX, HTML Template Word$49 / mo - 18
Docxpresso docxpresso.comEUR pricing shown as Core 2500 EUR/user/mo (likely 25.00, formatting unclear).
Outputs PDF, DOCX Template Word Also reads built-in forms$27 EUR 25/user, converted - 19
DoxFlowy doxflowy.comCore $20/user/mo annual per Capterra.
Outputs PDF, e-sign documents Template Visual builder Also reads built-in forms$20 / mo - 20
Orshot orshot.comImage, PDF and video render.
Outputs PDF Template Visual builder Also reads Airtable, Zapier/Make/n8n$39 / mo - 21
PDF Generator API pdfgeneratorapi.comPriced in EUR, annual only: Creator EUR 80/yr.
Outputs PDF Template Visual builder Also reads Airtable, Zapier/Make/n8n$7 EUR 80/yr, converted - 22
Templated.io templated.ioImage, PDF and MP4 render API.
Outputs PDF Template Visual builder Also reads Airtable, Zapier/Make/n8n$29 / mo - 23
DocRaptor docraptor.comHTML to PDF via Prince. Basic $15/mo, 125 docs.
Outputs PDF, XLSX Template HTML$15 / mo - 24
Foxit Document Generation API developer-api.foxit.comWord template plus JSON. Startup $1,750/yr (computed $145.83/mo).
Outputs PDF, DOCX Template Word$145.83 / mo - 25
$15 / mo - 26
PDF.co pdf.coPDF API suite including HTML template to PDF.
Outputs PDF Template HTML Also reads Zapier/Make/n8n$8.99 / mo - 27 $1 / mo, cheapest here
- 28
$49 / mo - 29 $16 / mo
- 30
doqs.dev doqs.devPDF filling API. EUR pricing: Starter EUR 0.08/doc, Scale EUR 25/mo.
Outputs PDF Template PDF form$27 EUR 25, converted - 31
$9 / mo - 32 $19 / mo
- 33
Contractbook contractbook.comCentralize $399/mo annual, currency labels mixed.
Outputs PDF, e-sign documents Template Visual builder Also reads HubSpot, Salesforce, Pipedrive, Zapier/Make/n8nNot published free tier - 34
Experlogix Document Automation experlogix.comAlso Dynamics 365, SugarCRM, Power Platform.
Outputs PDF, DOCX, XLSX, email, e-sign documents Template Word Also reads SalesforceOn request - 35 jsreport jsreport.net
Free up to 5 templates. Enterprise $395/yr single instance.
Outputs PDF, DOCX, XLSX, PPTX, HTML Template HTMLOn request free tier - 36
Aspose.Words products.aspose.comSDK. Developer Small Business license $1,679 perpetual.
Outputs PDF, DOCX, HTML, Markdown Template WordOn request - 37
Gamma gamma.appAI presentations. Exports PPTX, PDF, Google Slides on Free.
Outputs PPTX, PDF, Google Slides Template Visual builder Also reads HubSpotNot published free tier - 38
Legito legito.comSmart document and contract automation.
Outputs DOCX, PDF, e-sign documents Template Visual builder, Word Also reads built-in formsNot published free tier - 39 ActiveDocs activedocs.com
Word-based enterprise document generation.
Outputs DOCX, PDF, e-sign documents Template WordOn request - 40
docassemble docassemble.orgMIT guided-interview and document assembly.
Outputs PDF, DOCX Template Word, PDF form Also reads built-in formsFree - 41
HotDocs mitratech.comOwned by Mitratech. Desktop and cloud.
Outputs DOCX, PDF Template Word Also reads built-in formsOn request - 42
PDF4me pdf4me.comYnoox GmbH. Generate Documents endpoint.
Outputs PDF, DOCX Template Word Also reads Zapier/Make/n8nNot published free tier - 43
Placid placid.appCreative automation for images, PDFs, video.
Outputs PDF Template Visual builder Also reads Airtable, Zapier/Make/n8nNot published - 44
Adobe Document Generation API developer.adobe.comPart of Adobe PDF Services.
Outputs PDF, DOCX Template WordOn request free tier - 45
Not published - 46
Gotenberg gotenberg.devMIT Docker API. HTML, Markdown and Office to PDF via Chromium and LibreOffice.
Outputs PDF Template HTMLFree - 47
Not published - 48 pdfme pdfme.com
MIT TypeScript library with WYSIWYG template designer.
Outputs PDF Template Visual builderFree - 49
Not published free tier - 50
WeasyPrint weasyprint.orgOpen-source HTML/CSS to PDF in Python by Kozea; support by CourtBouillon.
Outputs PDF Template HTMLFree - 51
Starter $29/mo, 100 docs.
Outputs PDF, DOCX, PPTX, XLSX, e-sign documents Template Word, Visual builder Also reads Airtable, Zapier/Make/n8n, built-in forms$29 / mo - 52
Formerly Documate (Documate Inc. dba Gavel).
Outputs DOCX, PDF Template Word, PDF form Also reads built-in forms, Zapier/Make/n8n$83 / mo - 53
Micro $19.50/mo shown; price formatting unclear on page.
Outputs DOCX, XLSX, PDF Template Word Also reads Google Sheets, CSV, Excel, Zapier/Make/n8n +1$19.50 / mo - 54
Individual $33/mo billed $390/yr.
Outputs PDF, DOCX, e-sign documents Template Word, Visual builder Also reads built-in forms, Zapier/Make/n8n$33 / mo - 55
Word templates plus JSON.
Outputs PDF, DOCX Template Word Also reads Coda, Zapier/Make/n8n$19 / mo - 56
JS and HTML-to-PDF functions for Make and n8n.
Outputs PDF Template HTML Also reads Zapier/Make/n8n$9 / mo - 57
EUR pricing: Breeze EUR 6.90/mo.
Outputs PDF Template Visual builder Also reads Zapier/Make/n8n$7 EUR 6.90, converted - 58
Starter $35/mo, 3,000 PDFs.
Outputs PDF Template Visual builder, HTML Also reads Zapier/Make/n8n$35 / mo - 59
Adjacent proposal and e-sign suite.
Outputs PDF, e-sign documents, DOCX Template Visual builder Also reads HubSpot, Salesforce, Pipedrive, Zapier/Make/n8n G2 4.7 (3324)$19 / mo - 60
DocuSeal docuseal.comOpen-source e-sign and PDF form builder.
Outputs PDF, e-sign documents Template PDF form Also reads built-in forms$20 / mo - 61 SignWell signwell.com
Adjacent e-sign with template API, 25 free API docs/mo.
Outputs PDF, e-sign documents Template PDF form Also reads Zapier/Make/n8n$10 / mo - 62
Dropbox Sign API sign.dropbox.comAdjacent e-sign API with templates.
Outputs e-sign documents, PDF Template PDF form$75 / mo - 63
$25 / mo
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What differs for JSON API
Conga Composer, Formstack Documents and Documint come first in our order. Among them, 8 need Zapier, Make or n8n to read JSON sent to an API, so they sit after the tools with a direct connection.
Besides PDF, the most common outputs are DOCX (28), e-sign documents (16) and PPTX (10). Templates are built in Word (26), HTML (19) and a visual builder (19). Your own code decides when to call the API, so a document can be built on any event. Prices were checked on 20 Oct 2026.
Nearby pages
Broader list: Document generation APIs (64 tools).
Related lists: PDF generators for Zapier, Make or n8n (34 tools), PDF generators for Salesforce (32), PDF generators for HubSpot (27), PDF generators for built-in forms (26), PDF generators for Airtable (20), PDF generators for Google Sheets (19), PDF generators for Google Forms (8), PDF generators for Pipedrive (7).
How to generate PDFs from a JSON API: a step-by-step guide, updated 21 Oct 2026.
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