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HTML PDF API

by Effectiva studio d.o.o.

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HTML PDF API's own site

What HTML PDF API is

HTML PDF API is a paid cloud service that converts web content and supplied HTML into PDFs through a language-agnostic REST API. Inputs include webpage URLs, raw HTML, HTML files, and compressed archives in ZIP, TAR.GZ, TGZ, or TAR.BZ2 formats. Bulk PDF generation is supported. Users can set page size, orientation, margins, and custom HTML headers and footers with page variables. JavaScript execution can be enabled with a controlled delay. The conversion engine uses wkhtmltopdf and WebKit, supporting CSS2 fully and CSS3 partially, along with SVG, Base64 images and fonts, and custom OTF, TTF, and WOFF fonts. Reusable images, stylesheets, scripts, and fonts can be uploaded. The API can also generate PNG, JPG, or GIF images from URL, file, or HTML input. Reports and analytics track PDF creation and usage planning. Servers and processing are in the EU, communication uses SSL, and conversion data is deleted after five minutes. File limits include 3 MB for HTML and 100 MB for compressed files; remote resources time out after 30 seconds. New users are no longer accepted.

Who it suits

HTML PDF API suits developers needing cloud conversion, REST access, configurable layouts, or bulk PDF generation. It is intended for users who can work with a paid service and its stated file and request limits.

What it does well

  • Accepts URL, HTML, and archive inputs
  • Supports bulk PDF generation
  • Provides language-agnostic REST API
  • Configures headers, footers, and margins
  • Deletes conversion data after five minutes

What to know first

  • No free plan or trial
  • CSS3 support is partial
  • New user registration is closed
  • HTML files limited to 3 MB

Verdict

HTML PDF API offers broad HTML-to-PDF inputs, layout controls, image output, reusable assets, and bulk processing. Registration availability and the documented limits are important constraints for new projects.

Facts from Effectiva studio d.o.o.'s own pages

Analytics
The maker describes detailed reporting that tracks PDF creation and helps users plan their business. · htmlpdfapi.com, 9 Oct 2026
API
Its REST API is language agnostic and can be integrated with programming languages that support HTTP requests. · htmlpdfapi.com, 9 Oct 2026
Assets
Users can upload reusable assets such as images, stylesheets, scripts, and fonts for use in templates. · htmlpdfapi.com, 9 Oct 2026
Availability
The terms say the service is available 24/7 but continuous system availability is not guaranteed. · htmlpdfapi.com, 9 Oct 2026
CSS and JavaScript
The conversion engine supports CSS2 fully, CSS3 partially, and JavaScript. · htmlpdfapi.com, 8 Oct 2026
Data access
The privacy policy says only mandatory super administrators can access data and no one outside the EU has access to the service. · htmlpdfapi.com, 8 Oct 2026
Deployment
cloud · htmlpdfapi.com, 23 Sept 2026
File limits
The API documentation lists a maximum HTML file size of 3 MB and a maximum compressed file size of 100 MB. · htmlpdfapi.com, 9 Oct 2026
Graphics and fonts
It supports SVG, Base64 images and fonts, and custom OTF, TTF, and WOFF fonts. · htmlpdfapi.com, 8 Oct 2026
Headquarters
Zagreb, Croatia · htmlpdfapi.com, 28 Sept 2026
Image output
The API can generate images in PNG, JPG, or GIF formats from a URL, file, or HTML input. · htmlpdfapi.com, 9 Oct 2026
Inputs
It accepts raw HTML, URLs, or compressed files containing HTML and resources. · htmlpdfapi.com, 9 Oct 2026
Integrations
The maker describes integration through HTTP requests and does not name specific third-party integrations on the pages reviewed. · htmlpdfapi.com, 8 Oct 2026
Key features
Generate PDFs from webpage URLs, HTML strings, or HTML files · Convert compressed archives containing HTML and related resources · Configure page sizes, orientation, and margins · Add custom HTML headers and footers with page variables · Enable JavaScript execution and control its delay · Upload and manage reusable remote assets · Generate PDFs asynchronously and deliver them to a callback URL · Configure PDF outlines, backgrounds, and internal or external links · htmlpdfapi.com, 23 Sept 2026
Maker
The service is made and operated by Effectiva studio d.o.o., based in Sesvete (Zagreb), Croatia; the imprint does not state a founding year. · htmlpdfapi.com, 8 Oct 2026
Maker and location
The imprint identifies the maker as Effectiva studio d.o.o., with an office in Zagreb, Croatia. · htmlpdfapi.com, 9 Oct 2026
Notable limit
The maker specifies full CSS2 support but only partial CSS3 support. · htmlpdfapi.com, 8 Oct 2026
Output options
The engine supports SVG, custom OTF, TTF, and WOFF fonts, Base64 images and fonts, custom headers and footers, margins, and page sizes. · htmlpdfapi.com, 9 Oct 2026
PDF layout
It supports custom headers, footers, margins, and page sizes. · htmlpdfapi.com, 8 Oct 2026
Privacy metadata
The privacy policy says conversion URL metadata is collected for statistics and does not include the source content. · htmlpdfapi.com, 9 Oct 2026
Purpose
HTML PDF API is a cloud service for converting HTML to PDF using HTML, CSS, and JavaScript. · htmlpdfapi.com, 8 Oct 2026
Registration
The registration page states that new users are no longer being accepted and that existing users will continue to be served without interruption. · htmlpdfapi.com, 9 Oct 2026
Remote assets
Users can upload frequently used files such as logos, fonts, and images for reuse in PDF exports. · htmlpdfapi.com, 8 Oct 2026
Rendering
The maker says the conversion engine uses wkhtmltopdf and supports full CSS2, partial CSS3, and JavaScript. · htmlpdfapi.com, 9 Oct 2026

Where HTML PDF API stands on Freedom251

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