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1Repair Windows errors before they cause bigger problems2Fix the driver behind crashes, sound loss and screen glitches3Clear out junk files and repair common Windows errorsCloudConvert does not publish a fixed, universal request quota specifically for HTML-to-PDF jobs. Its API documentation says rate limits on some endpoints are dynamic. If a request to create a job or task is throttled, CloudConvert returns HTTP 429 and provides rate-limit headers, including Retry-After. Use the values in your own response rather than treating the documentation’s example numbers as your account’s quota.
Which CloudConvert requests are rate limited?
CloudConvert identifies API endpoints that create jobs and tasks as subject to dynamic rate limiting. An HTML-to-PDF workflow uses the jobs/tasks API: CloudConvert’s HTML-to-PDF example uses a capture-website task with output_format set to pdf. The documentation does not publish a separate numerical allowance for that operation. CloudConvert’s API introduction and rate-limiting guidance and its capture-website operation reference describe these behaviors.
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That means there is no documented answer such as “you can always create N HTML-to-PDF jobs per minute.” The effective limit can be dynamic, and the documentation reviewed does not establish a fixed sustained quota for every account.
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How to read a 429 response
When CloudConvert blocks a request because a limit has been reached, the documented signal is HTTP 429 Too Many Requests. The response includes rate-limit headers such as:
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X-RateLimit-Limit: the limit indicated for that response.X-RateLimit-Remaining: the remaining amount indicated for that response.Retry-After: how many seconds to wait before making the next request.
CloudConvert’s documentation shows X-RateLimit-Limit: 1000 and Retry-After: 60 in an example response. Those are illustrative sample values, not a guaranteed quota or fixed wait for all accounts or HTML-to-PDF requests. Read the headers returned with your own 429 and honor that response’s Retry-After value. The API documentation describes the limits as dynamic.
How HTML-to-PDF job submission fits the limit
A CloudConvert job groups tasks, commonly including input, conversion, and output steps. Creating the job is an API request distinct from the later processing of its tasks. For website capture, the documented operation is capture-website, with a URL and output_format set to pdf. See the HTML-to-PDF API overview and the jobs API reference.
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The jobs reference documents asynchronous POST /v2/jobs, which returns after job creation, as well as a synchronous endpoint that waits for completion. Asynchronous submission does not remove the rate limit on job creation; it changes how your application waits for the work to finish. A synchronous request can keep an application blocked while a long-running job completes, so CloudConvert recommends using webhooks for completion notifications. The quickstart describes webhooks and polling as workflow choices. Read CloudConvert’s quickstart guide for the documented notification approach.
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- Do not immediately resubmit. Read the response’s
Retry-Afterheader and wait at least the number of seconds it specifies before making the next request. - Inspect the other rate-limit headers. Use
X-RateLimit-LimitandX-RateLimit-Remainingfrom the actual response to understand what CloudConvert reported at that time. Do not substitute the documentation’s sample values. - Control submission concurrency. If your application is creating many jobs or tasks at once, pace those API requests and avoid bursts that repeatedly reach the limit. Keep this request-throttling handling separate from the work of checking whether an already-created job has completed.
- Use completion notifications for long jobs. Prefer the documented webhook workflow when appropriate instead of holding an application request open while conversion runs. Polling is an alternative described in CloudConvert’s quickstart, but it should not be confused with retrying a failed task.
- For a committed account-specific quota, check your account materials or contact CloudConvert. The public documentation reviewed does not establish a fixed quota for a particular account or a distinct numerical HTML-to-PDF cap.
Do not confuse a throttled request with a failed task
A 429 means an API request was rate limited; its explicit recovery instruction is the response’s retry delay. A task failure is a different condition. CloudConvert says it internally retries tasks when errors are retryable and asks users not to automatically retry tasks. Avoid implementing a blanket “retry every failure immediately” rule: handle 429 responses according to their headers, and do not automatically resubmit failed tasks. CloudConvert’s API introduction includes both the rate-limit and retry-task guidance.
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ScreenshotNeo as an alternative for website capture
If your need is to capture a webpage rather than use CloudConvert’s broader conversion workflow, ScreenshotNeo is a website screenshot API that can return a screenshot or PDF. It is a separate service, not a way to raise CloudConvert’s quota. Its API response identifies page verdict and billing status; clean shots are billed, while bot checks, blank pages, timeouts, failed loads, and cache hits cost nothing.
The following cURL example captures a page as an image; it is not a PDF-output example. See the ScreenshotNeo API documentation for request options.
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