Apdf vs Zamzar API

Apdf generates and tracks PDFs through an API, sending reader activity to apps or AI agents. PDF operations include HTML-to-PDF generation, merging, splitting, compression, watermarking, OCR, and password security. Reader analytics report opens, page reads, time spent, downloads, prints, and other events. Tokenized recipient links associate activity with named readers and can be deactivated or revoked. Recipients use a hosted browser viewer without installing an app or plugin; they can annotate PDFs and submit form fields, with captured information delivered as structured data. Event-based automations send webhooks to external endpoints. The site describes MCP connections for Claude, ChatGPT, Cursor, and Gemini, alongside webhook examples involving Slack, HubSpot, Pipedrive, and S3. Apdf says data is hosted in the EU, encrypted in transit and at rest, and handled in a GDPR-compliant manner. The free Hobby plan includes 3 tracked documents and 500 PDF operations per month. Pro costs $39 a month, billed $39 / mo; Business costs $149 a month, billed $149 / mo.

Zamzar API is a REST-based HTTP service for adding file conversion to mobile, web, or desktop applications. It supports more than 1,100 conversion types across documents, video, images, audio, eBooks, CAD, 3D, and compressed files. Files can come from a user's machine or be reachable through HTTP, FTP, SFTP, or Amazon S3. Zamzar says its cloud service can handle demand from one file to 10,000. Developers can use official Java, PHP, and Python SDKs, plus code samples for C#, cURL, Node.js, and other languages. The free Test plan costs nothing, requires no card, and includes 100 credits, a 1 MB maximum file size, one-day file storage, and a three-day support response. Paid plans start at $25 /month. Successful conversions use at least one credit, and unused monthly credits do not roll over. Zamzar describes the API as a conversion service, not a CDN; converted files should be retrieved through the API. Accounts include free sandbox testing subject to file-size and job-count limits.