Documents that run themselves.
ASHDOCS puts 30 PDF tools behind one API — and a no-code flow builder that turns them into automations. Generate invoices, convert anything to PDF, extract data from statements, and deliver it where work happens: Make, Zapier, n8n, Airtable. Failed jobs are never charged.
curl -X POST \ www.ashdocs.com/api/v1/tools/pdf-to-markdown \ -H "X-API-Key: ash_test_..." \ -F "file=@invoice.pdf"
HTTP/2 200 · 124 ms
{
"status": "completed",
"credits_used": 1,
"download_url": "https://…/invoice.md"
}What is ASHDOCS?
ASHDOCS is a REST API and no-code integration for document processing. 30 tools cover HTML-to-PDF, URL-to-PDF and Markdown-to-PDF rendering, format conversion (DOCX/XLSX/PPTX/HEIC), PDF-to-HTML, merge/split/compress/watermark editing, AES-256 encryption and native PII redaction, OCR in 8 languages, schema-driven data extraction from invoices, purchase orders, contracts, and bank statements, plus generation tools for invoice PDFs, barcodes, QR codes, webpage screenshots and Open Graph images. Every tool is callable over HTTPS — including from the HTTP modules in Make, Zapier and n8n (recipes included) — and 28 apps like Airtable, Stripe and Notion connect natively in ASHDOCS Flows. Every account gets a sandbox key that never consumes credits.
Watch a sentence become a working flow.
Recorded in the live product — 35 seconds, zero credits. See how Flows works →
30 PDF tools, one REST API
/html-to-pdf/url-to-pdf/markdown-to-pdf/office-to-pdf/image-to-pdf/pdf-to-image/pdf-to-html/merge/split/compress/rotate/watermark/extract-pages/remove-pages/page-numbers/metadata/password-add/password-remove/redact-pdf/ocr/pdf-to-text/pdf-to-table/pdf-to-data/bank-statement-to-csv/pdf-to-markdown/invoice-pdf/barcode/qr-code/screenshot/og-imageFour of them — rotate, extract-pages, remove-pages and metadata — are always free: local page operations with no rendering engine, OCR or AI, so they never cost credits. See every tool and its cost →
How do I make my first ASHDOCS API call?
Every request needs an X-API-Key header. Sandbox keys (prefix ash_test_) never bill — use them in CI.
curl -X POST https://www.ashdocs.com/api/v1/tools/html-to-pdf \
-H "X-API-Key: ash_test_xxxxxxxx" \
-H "Content-Type: application/json" \
-d '{ "html": "<h1>Hi</h1>", "options": { "format": "A4" } }'Which tools does ASHDOCS integrate with?
PDF API — frequently asked questions
What is the ASHDOCS PDF API?+
ASHDOCS is a REST API and visual pipeline builder for document automation. From a single API key you get HTML-to-PDF, URL-to-PDF, Markdown-to-PDF, structured data extraction, OCR, and PII redaction — plus 28 native app connections in Flows (Airtable, Stripe, Notion, Trello and more, with Slack, Outlook, DocuSign, OneDrive and Salesforce coming soon) and ready-made HTTP recipes for Make, Zapier and n8n.
Is there a free PDF API?+
Yes — ASHDOCS includes a free PDF API tier with 100 credits per month and no card required. Every account also gets a sandbox key (prefix ash_test_) that runs all 30 tools end-to-end without ever consuming credits, so you can evaluate the API and run CI tests indefinitely.
What is the best PDF API for Zapier and n8n?+
The best PDF API for Zapier and n8n is one that exposes every tool as a plain REST endpoint — ASHDOCS does exactly that, with 30 tools behind one X-API-Key header. Wire any endpoint into a Zapier webhook action or an n8n HTTP Request node and map the returned file into your next step.
What is document workflow automation?+
Document workflow automation is software that carries a document through every step it needs — created or converted, data extracted, approved, and filed — without manual work. ASHDOCS Flows does this without code: describe the workflow in a sentence, AI drafts the steps, and it runs on your schedule, filing results in Drive, Sheets or your inbox.
How do I convert HTML to PDF with an API?+
POST your HTML string (or template) to https://www.ashdocs.com/api/v1/tools/html-to-pdf with an X-API-Key header. ASHDOCS renders via a headless Chromium and returns a PDF file. A4/Letter, margins, page breaks, and headers/footers are all configurable.
Can I extract structured data (JSON) from a PDF?+
Yes. POST a file plus a JSON schema to /api/v1/tools/pdf-to-data. ASHDOCS uses Claude Sonnet 5 to return matching fields plus per-field confidence and a needs_review flag. Invoices, purchase orders, contracts, and bank statements are supported end-to-end.
How much does the ASHDOCS API cost?+
ASHDOCS is credit-based. Signup includes 100 free credits and a sandbox key that never bills. Paid tiers start at $15/month (1,500 credits), or $12.50/mo billed annually. HTML-to-PDF and merge cost 1 credit; extraction and OCR cost 1–3 credits per document. Annual billing saves you two months per year on every paid tier.
Which no-code tools does ASHDOCS integrate with?+
Make, Zapier and n8n connect through their built-in HTTP modules — every ASHDOCS tool is a plain REST endpoint, and we publish step-by-step recipes for all three. Inside ASHDOCS Flows, 28 apps connect natively (Airtable, Stripe, Notion, Trello, Twilio, Mailchimp and more), each with its own setup guide. Outbound webhooks fire on job.completed, job.failed, pipeline.completed and review.approved.
How does ASHDOCS handle sensitive data and PII?+
Per-request and account-wide zero-retention modes never persist source files. Native PDF redaction removes PII from the content stream via apply_redactions (not overlaid). Every outbound webhook is signed with HMAC-SHA256.
Can I try ASHDOCS without a credit card?+
Yes. Signup issues a sandbox API key immediately (prefix ash_test_). Sandbox keys never bill and give you access to the full API surface — perfect for evaluation and CI.