HTML PDF API is an online REST API service operated by Effectiva studio d.o.o. Its main goal is to help developers quickly add PDF export capabilities to web or mobile applications. It can accept HTML strings, HTML files, and webpage URLs, and it also supports uploading ZIP archives that contain images, CSS, and fonts for conversion into PDF. In addition, it provides an API for converting URLs into JPG images.
Based on the available text, its API design is fairly straightforward: authentication is handled via Authentication: Token <your token>, and the main endpoints include /api/v1/pdf and /api/v1/image. The documentation provides cURL examples covering PDF generation from URLs, HTML strings, HTML files, and ZIP files, as well as JPG generation with parameters such as width, height, and scaling. It also supports remote Assets, allowing teams to upload frequently reused resources such as logos, fonts, and high-quality images for long-term storage and faster generation. Usage reports help teams understand PDF generation volume and plan capacity accordingly.
Billing uses a credits model, with support for one-time purchases, monthly subscriptions, and annual subscriptions. It includes 100 free credits with no credit card required. Each 0.5MB PDF consumes 1 credit. Credits are valid for 90 days, and each purchase extends the validity period of all credits. The service currently limits each IP to 12 requests per second; higher concurrency requires contacting the official team. The pricing page states that unit prices decrease as you buy more, but the scraped text did not show specific amounts.
The advantages are simple integration and flexible input formats, making it suitable for invoices, reports, webpage archiving, and similar use cases. SSL protection and automatic deletion of generated data after 5 minutes also show a degree of security consideration. The downsides are that no official SDK, framework integration, or self-hosted option was found. The terms of service also state that continuous availability is not guaranteed, regular paid purchases are non-refundable, and paid plans require a valid credit card.
It is suitable for small and medium-sized teams that need to launch PDF generation quickly but do not want to maintain rendering infrastructure such as Puppeteer, Playwright, or wkhtmltopdf. The source text does not provide information about access from mainland China, so network connectivity and payment availability need to be tested in practice. If access or compliance is restricted, alternatives include self-hosting wkhtmltopdf, WeasyPrint, Puppeteer/Playwright, or evaluating services such as PDFShift, DocRaptor, and Api2Pdf.
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htmlpdfapi.com is an Unknown Dev Tools provider. TG4G tracks its product information, an overall rating of 7.0/10, and a China-accessibility score of Workable. Click "Visit Official Site" to reach htmlpdfapi.com directly.