Alternatives

Products that do what Slipstack — Invoices & PDFs as an API does

Invoices & PDFs as an API - JSON in, PDF out

1PA
PDF API – Generate, convert, and modify PDF documents▲204
Hi HN, Arek here. We’re super excited to officially launch PSPDFKit API [1]. PSPDFKit API is a collection of HTTP APIs that enable you to convert, generate, and edit documents without running any service on your infrastructure. What differentiates our API from others is that you can chain together multiple “actions” as part of a single API request. For example, you can convert, OCR, watermark, edit, and flatten a document — all in one call. Available actions [2]: - PDF Generator - PDF Converter - Image Converter - OCR - Watermark - Merge - Split - Duplicate - Delete - Flatten Our…
2022
2
PDF merge API▲98
Create PDF documents from data and templates
2024
3ID
Invoice Dragon – An open source app to create PDF invoices▲564
2023 · invoicedragon.com
4
Anvil PDF Filling API▲205
The easiest way to programmatically populate any PDF
2020
5
FormAPI▲230
Stripe for PDFs
2017
6
Hybiscus▲255
Developer friendly JSON API for creating PDF reports.
2021
7
Doppio▲155
HTML to PDF/image API
2023
8AA
An API for filling out PDF forms▲209
2017 · formapi.io
9
Invoicer Studio▲207
Easily create invoices from a live editor
2024
10
Invoicing from code stats▲127
Generate PDF invoices from your code stats
2023
11
PDFMint▲7
PDF generation API with built-in open-tracking
Jul 2026 · pdfmintapi.com
12
Invoicy.io▲137
Free invoice generator
2019
13
API Template▲118
Generate images and PDFs with simple API
2021
14TA
ThePDFApi, a Chrome Based PDF Generation API Hosted on AWS▲41
Hello HN! It kept surprising me how much of a hassle it is to generate a PDF with decent HTML5 rendering from my SaaS apps. I tried several free libs and APIs but ended up with botched rendering a lot of times. So I set out to simplify this chore by creating an AWS hosted HTML to PDF conversion API that's based on Chrome. This API will allow a dev to just send the HTML to our API and get a PDF in response without having to worry about running and managing Chrome somewhere in their infra. I just finished the first version of my landing page and hosted pdf generation API…
2018
15
CraftMyPDF▲135
Design and generate pixel-perfect PDF documents in minutes
2022
16
QuickReceipts▲79
Digital receipts API without emails, phone numbers, or paper
2019
17
WebPDF▲103
Simple PDF API & web toolkit
2024
18
PDF Extractor API▲5
Extract JSON data from PDFs with a developer-friendly API
Jan 2026
19
InvoiceEasy - InvoxEasy▲3
Fast Invoices & Receipts
Jan 2026
20
PDF to JSON API▲4
Get structured JSON with extracted content for any PDF
Aug 2026 · exabase.io
21
DocAPI▲4
Extract invoices and PDFs into clean JSON with one API call.
Jun 2026 · docapi.site
22SC
SnazzyPDF – Convert Any JSON Data to Beautifully Formatted PDFs▲27
Hi HN, I'm a freelance developer, and I built SnazzyPDF in my spare time to solve a problem I encountered frequently: converting structured data into PDF documents. The existing solutions I found either required manually creating a template or forced you to transform your data into a specific structure. I wanted a tool where you could simply input arbitrary JSON data and get a decent-looking document out. That's why I built SnazzyPDF. * Works with any JSON: No need to restructure your data. SnazzyPDF handles (almost) any JSON data, including deeply nested arrays and objects. * Use REST API…
2024 · snazzypdf.com
23
PDFx▲7
Instant PDF/A-3 invoices via a single REST API call
Dec 2025
24AF
Automatically fill PDF templates per API▲22
2022 · doqs.dev

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