Zamzar API is a REST-based HTTP service for integrating file conversion into mobile, web, or desktop applications.
Alternatives to PdfGen
OCR.space converts images and PDF documents into editable text through an online OCR service and API, and can create searchable PDFs.
easyPDF Cloud API is a cloud platform for generating, converting, and automating PDF work.
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CraftMyPDF
CraftMyPDF is a cloud service for designing reusable document templates and generating PDFs or images from dynamic data.
Free planWebAPI7.5From $29 a month - 5

PDFMonkey
PDFMonkey is a cloud document-generation API that turns templates and dynamic data into files.
Free planWebAPI7.5From €5 a month - 6
HTML2PDF Rocket
HTML2PDF Rocket is a cloud service that converts a webpage URL or submitted HTML into a PDF or image file.
Free planAndroidWebAPILinux7.4From $5 a month - 7

DocRaptor
DocRaptor is a cloud REST API that converts HTML, CSS, and JavaScript into PDF and XLS documents using the Prince PDF converter.
Free planWebAPI7.0From $15 a month - 8
Aspose.PDF Cloud
Aspose.PDF Cloud is a PDF processing service for developers and businesses that need to work with documents through REST APIs and SDKs.
AndroidiOSWebAPI6.8From $30 a month - 9
HTMLPDF.dev
HTMLPDF.dev converts raw HTML or a publicly accessible URL into a PDF through a cloud API.
Free planWebAPI6.8From $19 a month - 106.8From €15 a month
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PDF4me API
PDF4me API gives developers REST endpoints and SDKs for document conversion, OCR, signing and parsing, alongside browser tools for converting,…
Free planAndroidiOSWebAPI6.8Free plan - 12
pdflayer
pdflayer is a cloud REST API for converting HTML or HTTP URLs into PDF documents.
Free planWebAPI6.8From $9.99 a month - 13

DynamicPDF Cloud API
DynamicPDF Cloud API provides cloud tools for creating and manipulating PDF documents through REST endpoints and client libraries.
Free planWebAPI6.7From $19.95 a month - 14
LlamaParse
LlamaParse converts complex documents into structured data for AI workflows, handling layouts, tables, charts, handwriting, checkboxes, and images.
Free planWebAPISelf-hosted6.7From $50 a month - 15

PDF Generator API
PDF Generator API automates PDF creation from data and reusable document templates.
WebAPISelf-hosted6.7From €6.67 a month - 16
6.7From $8.99 a month - 17
pdfRest API Toolkit Cloud
pdfRest API Toolkit Cloud provides APIs for converting, compressing, modifying, extracting, and securing digital documents.
Free planWebAPI6.7From $9.99 a month - 18

APITemplate.io
APITemplate.io is a cloud-based web service for generating PDFs and images from templates or supplied content.
Free planWeb6.6From $19 a month - 19
Nutrient DWS Accessibility API
Nutrient DWS Accessibility API automatically tags PDF files and checks their accessibility conformance.
Free planAPISelf-hosted6.6From $79 a month - 20
PDFCrowd API
PDFCrowd API is a paid cloud service for converting HTML, URLs, PDFs, and images through APIs, integrations, and online tools.
WebAPILinux6.6From $1 a month - 21
6.5From $39 a month - 22
Cloudmersive PDF API
Cloudmersive PDF API is a PDF-processing API for businesses and developers.
Free planAPISelf-hosted6.5From $19.99 a month - 23

DocSpring
DocSpring is a PDF automation API for developers filling forms, generating documents, and collecting electronic signatures.
WebAPISelf-hosted6.4From $49 a month - 24
GoPDF
GoPDF is a managed cloud API that converts HTML content or URLs into PDF documents.
Free planWebAPI6.4From $9 a month - 256.4From $599 a month
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PDFShift
PDFShift is a cloud, web-based service for converting HTML into PDF files and images.
Free planWeb6.4From $24 a month - 27
Sensible
Sensible is a cloud document-processing service that combines AI extraction with deterministic, rule-based methods.
WebAPI6.4From $449 a month - 28
Adobe PDF Services API
Adobe PDF Services API is a cloud-based web API for creating, converting, and organizing PDF documents.
Free planWeb6.2Free plan - 29

iLoveAPI
iLoveAPI provides REST APIs for automating document work, with tools for PDFs, images, and electronic signatures.
Free planWebAPI6.2Free plan - 30
VeryPDF Cloud API
WebAPI6.1From $41.66 a month