Apdf

Apdf is a cloud PDF API that combines document processing with recipient-level tracking and workflow automation. It is best suited to app builders and teams connecting document activity to apps or AI agents. Its broad PDF toolkit and event stream are compelling, but operation quotas and 60-minute storage for generated PDFs need to fit the workload.

Overview

Apdf handles PDF generation and processing through an API, while reporting how recipients interact with documents. The service covers HTML-to-PDF generation, merging, splitting, compression, watermarking, OCR and password security. That range can consolidate common document tasks for software teams; it is less suited to someone seeking a standalone PDF editor.

Reader analytics go beyond opens: Apdf reports page reads, time spent, downloads, prints and other events. Tokenized recipient links tie activity to named readers and can be deactivated or revoked. Recipients use a hosted browser viewer without installing an app or plugin, and can annotate PDFs or submit form fields. Responses arrive as structured data, making the viewer useful for collecting information as well as tracking readership.

Key features

When/filter/then automations can send event-driven webhooks to external endpoints, so teams can route document activity into workflows. Apdf describes MCP connections for Claude, ChatGPT, Cursor and Gemini, with webhook examples involving Slack, HubSpot, Pipedrive and S3. This integration approach suits teams already building around APIs and agents, though it presumes a workflow where events and external systems matter.

Apdf states that data is hosted in the EU, handled in a GDPR-compliant manner and encrypted in transit and at rest. The company says customer documents and reader behavior are not used as training data, and that data can be exported on demand. Support handles questions, billing requests, feedback and API problems by email.

The API documentation sets limits of 3 requests per second and 60 per minute, a 100 MB upload maximum, and 60 minutes of storage for generated PDFs. Those constraints deserve attention in workflows that need sustained request volume, large uploads or longer-lived generated files.

Pricing

Apdf has a free Hobby plan and two monthly paid plans. Hobby costs nothing (billed $0 / mo) and includes 3 tracked documents, 500 PDF operations per month, 14-day event history and 25 recipient links per document. It is a sensible starting point for a small integration or light usage, but the document and operation caps leave little room for a growing workflow.

Pro costs $39 a month (billed $39 / mo) and raises the limits to 50 tracked documents, 2,500 PDF operations per month, 90-day event history and 250 recipient links per document. It is the more practical tier for a working app or team that needs more recipients and longer analytics history, though the monthly operation ceiling still matters for frequent processing.

Business costs $149 a month (billed $149 / mo) and includes 300 tracked documents, 20,000 PDF operations per month, 12-month event history and 1,000 recipient links per document. It fits higher-volume workflows that need more durable event history and substantially larger quotas. Apdf also offers a 14-day trial; the plan limits and storage window should be checked against the intended workload before committing.

Platforms

Apdf is available through an API and the web, and uses a cloud deployment model. That makes it a fit for software integrations and browser-based administration rather than an installed desktop or mobile application.

Who it's for

Apdf makes the most sense for app builders who need PDF generation and processing inside a product, operators who want reader events to trigger connected workflows, and AI-native teams using agents. Named-recipient tracking, structured form responses and webhooks are valuable when document activity needs to feed another system. A team that only needs occasional conversion or OCR may find the tracking and automation emphasis unnecessary.

Pros and cons

• Pros: A broad set of PDF operations, from HTML generation through OCR and security, can support several document tasks through one API.
• Pros: Recipient-level links, detailed reader events, annotations and structured form responses connect document viewing to measurable activity and data capture.
• Pros: Event-driven webhooks and described MCP connections suit app and agent workflows that need to act on document events.
• Cons: Generated PDFs are stored for only 60 minutes, which may not suit processes that depend on retaining generated files.
• Cons: The 3 requests-per-second and 60-per-minute limits, plus monthly operation quotas, constrain throughput and require capacity planning.
• Cons: The free plan is capped at 3 tracked documents and 500 PDF operations per month, making it a limited basis for production use.

Alternatives

easyPDF Cloud API is worth considering when broad device and operating-system coverage matters; its free Guest tier includes REST API trial access, but is limited to one stored file, 2 MB maximum upload and one file at a time.

OCR.space is a stronger candidate for OCR-focused work, with a free tier of 25,000 requests per month but a 1 MB file limit, three PDF pages and a searchable-PDF watermark.

PDF4me API may fit buyers who prefer a one-time call pack: its Pack 1,000 includes 1,000 API calls for free, with calls that never expire while the account remains active.

Zamzar API is another freemium option for conversion workflows; its Test plan provides 100 conversion credits, with a 1 MB file limit and one-day file storage.

HTML2PDF Rocket may suit a narrower HTML-to-PDF need: its free plan grants 200 credits per month, with a 5 Mb per-PDF limit and credit use tied to network traffic for larger PDFs.

CraftMyPDF is an alternative for template-based PDF generation, with a free tier of 50 PDFs or images per month, three templates, and REST API, Zapier, Make.com and Bubble.io access.

DocRaptor offers a simpler document-volume comparison: its free plan covers five documents per month, while its Basic plan covers 125 documents per month for $15 a month.

DynamicPDF Cloud API may be preferable for a page-based free allowance, offering 1,000 pages per day, 10 MB cloud storage and community support, with an output watermark on its free plan.

Browse more options in PDF API Software.

Verdict

Choose Apdf if your app or workflow needs both PDF operations and recipient-level activity that can trigger downstream actions. The combination of document processing, named-reader tracking, structured responses and webhooks is its clearest advantage. Look elsewhere if your workload needs longer generated-file retention, higher sustained request rates, or only a focused conversion or OCR tool without tracking and automation.