Crashes, No Sound, or Screen Glitches?
Random freezes, missing sound and display glitches usually trace back to one bad driver. Find and replace yours safely.Free scan · under a minutePC Slower Than It Used to Be?
A free scan shows the junk files, broken settings and background clutter dragging Windows down - then fixes them in one click.Free scan · Windows 10 & 11PDFShift documents separate limits for request rate, monthly conversion credits, and simultaneous conversions. For normal authenticated requests, its API documentation lists 250 documents per minute; unauthenticated requests are limited to 2 per minute, and sandbox requests to 10 per minute. A request that exceeds a rate limit receives HTTP 429. These figures are distinct from how many monthly credits your account has or how many conversions can run at once.
PDFShift’s documented rate limits
PDFShift’s official API documentation, accessed in 2026, lists these rate ceilings. The page does not show a publication or effective date, and it does not describe account-specific exceptions.
| Request context | Published limit |
|---|---|
| Unauthenticated | 2 requests per minute |
| Authenticated | 250 documents per minute |
| Sandbox mode | 10 requests per minute |
Use the limit that matches the request actually reaching PDFShift. In particular, do not assume that the authenticated allowance applies if the request is missing or not using valid authentication. The documentation says “documents” for the authenticated limit; it does not promise a particular sustained conversion throughput. See PDFShift’s rate-limit documentation for its current wording.
What to do when you receive HTTP 429
A 429 response indicates rate throttling. PDFShift documents three response headers that help you understand the limit state:
Do these 3 things before closing this tab:
1Repair Windows errors before they cause bigger problems2Fix the driver behind crashes, sound loss and screen glitches3Clear out junk files and repair common Windows errors#1 Best Overall
- Read Before You Buy — No Video Output: These adapters support charging and USB 2.0 data transfer, but cannot transmit video signals. Except for standard USB webcams (which use USB data only), they are not compatible with HDMI/DisplayPort cables, video-capable USB-C hubs, or docking stations with video output.
- Convert USB-A Ports to USB-C: Designed to connect USB-C earphones, cables, flash drives, card readers, and other USB-C accessories to standard USB-A ports. Plug-and-play with no drivers or software required.
- Aluminum Alloy Housing: Built with a sturdy aluminum alloy shell that aids in heat dissipation and protects against daily wear and scratches. Designed to maintain a stable and secure connection.
- Compact & Travel-Friendly: The ultra-compact design allows the adapter to stay plugged into your device without blocking adjacent ports or adding bulk, reducing wear and tear on your original USB ports.
- 12-Month Warranty: Backed by a 12-month manufacturer warranty for peace of mind. Designed to meet strict quality control standards for reliable everyday performance.
X-RateLimit-Remaining: the remaining requests in the current rate window.X-RateLimit-Limit: the rate limit.X-RateLimit-Reset: the reset time as a Unix timestamp in seconds.
Inspect the headers before retrying. Wait until the indicated reset time rather than immediately replaying a batch of requests; repeated immediate retries can continue to hit the same limit. If requests that should be authenticated appear to be using the 2-per-minute unauthenticated allowance, verify that your authentication is present and accepted. PDFShift documents the limits and headers, but does not publish a universal retry schedule in the cited rate-limit page.
Rate limits are not monthly credits
The requests-per-minute ceiling controls short-window traffic. Monthly usage is measured separately in credits, and a single conversion may consume more than one credit depending on the generated file size.
Rank #2
- 5-in-1 USB-C Hub: Experience comprehensive connectivity featuring a Power Delivery input, two USB-A 2.0 ports, a USB-A 3.0 port, and an HDMI port. (Note: The USB-C power delivery input port is only for connecting an external wall charger to power your laptop and cannot power peripheral devices.)
- 90W Pass-Through Charging: Achieve optimal charging with 90W pass-through power to your laptop, supported by a total input of 100W, with the hub reserving 10W for operational efficiency. (Note: Wall charger not included.)
- Quick Data Transfers: Accelerate your productivity with rapid data transfers using a high-speed 5Gbps USB 3.0 port and two 480Mbps USB 2.0 ports.
- 4K HDMI Display: Enhance your visual experience with a hub capable of delivering 4K resolution at 30Hz in both mirror and extend modes. Please note that this hub is compatible with MacBook (macOS 12 and newer), Windows 10 and 11, ChromeOS, and laptops equipped with DP Alt Mode and Power Delivery. Note: This device is not compatible with Linux.
- What You Get: Anker USB-C Hub (5-in-1, 4K HDMI), welcome guide, 18-month warranty, and our friendly customer service.
PDFShift’s displayed pricing page in 2026 lists 50 free monthly credits. Its credit explanation says a generated file up to 5 MB uses one credit, with larger files charged in 5 MB increments rounded up: a 4 MB file uses one credit, a 9 MB file uses two, a 14 MB file uses three, and a 23 MB file uses five. The pricing page likewise says a 14 MB PDF consumes three credits. Check the live PDFShift pricing page and your account before relying on included amounts, since plan details can change.
Parallel conversions are a separate capacity limit
PDFShift’s FAQ says up to 50 conversions can run in parallel by default across plans. This is concurrency, not a per-minute rate allowance: a client can be below its request-rate ceiling yet still have work queued because it has reached the number of simultaneous conversions. The FAQ says parallel requests are queued and return 202 Accepted, with a webhook sent for each converted source. Contact PDFShift if you need a higher concurrency limit; do not assume that a plan upgrade automatically changes it.
Rank #3
- Sleek 7-in-1 USB-C Hub: Features an HDMI port, two USB-A 3.0 ports, and a USB-C data port, each providing 5Gbps transfer speeds. It also includes a USB-C PD input port for charging up to 100W and dual SD and TF card slots, all in a compact design.
- Flawless 4K@60Hz Video with HDMI: Delivers exceptional clarity and smoothness with its 4K@60Hz HDMI port, making it ideal for high-definition presentations and entertainment. (Note: Only the HDMI port supports video projection; the USB-C port is for data transfer only.)
- Double Up on Efficiency: The two USB-A 3.0 ports and a USB-C port support a fast 5Gbps data rate, significantly boosting your transfer speeds and improving productivity.
- Fast and Reliable 85W Charging: Offers high-capacity, speedy charging for laptops up to 85W, so you spend less time tethered to an outlet and more time being productive.
- What You Get: Anker USB-C Hub (7-in-1), welcome guide, 18-month warranty, and our friendly customer service.
Credit exhaustion, alerts, and overage
PDFShift’s FAQ describes usage alerts at 50%, 80%, and 100% of monthly credit usage. It says overage can be enabled to continue processing after the included quota is exhausted. The Help Center says overage is disabled by default and may be configured with a cap, so check your account settings and plan terms before expecting conversions to continue or estimating the bill.
The Help Center illustrates overage with a Business plan containing 25,000 credits, a configured 27,500-credit cap, and $0.02 per extra credit. Those are figures from that example, not a universal or guaranteed current overage price. Consult PDFShift’s overage-credit guidance for the explanation and confirm your own account’s settings.
Rank #4
- Dual Converters, Infinite Potential：Includes 2× USB C male to USB A female adapters and 2× USB A male to USB C female adapters. Perfect for a wide range of uses—tablets with Bluetooth keyboards, expand USB ports on macbook, and more. Two different converters for all your daily needs
- Next-Level 10Gbps & 3A Charging: No more slow 480Mbps, this usb to usb c adapter has a transfer speed of up to 10Gbps, allowing you to do more transferring in less time. This usb adapter fits both USB A and USB C charger, supporting up to 3A fast charging
- Upgraded Exquisite Craftsmanship: With an aluminum alloy housing and metal connector, the usbc to usb adapter is extremely durable and sturdy. Rigorously tested to withstand more than 10,000 times of plugging and unplugging, ensuring long-lasting performance
- Broad Compatible: The usb c to usb adapter widely supports all USB C/ USB A devices like laptops, tablets, cellphones, car chargers, and phone chargers. Such as compatible with MacBook Pro/Air 2023/2022, Thunderbolt 4/3 Devices,Apple MagSafe Watch 9/8/7/SE/Ultra, iPad Pro 2022/2021, Samsung Galaxy S23/S20/S10, and iPhone 17/16/15 Pro. Plug and play
- Please Note: To reach 10Gbps speed, keep the cable under 3.3 ft. For USB A Male to USB C adapters, try flipping the USB C connector. USB C Male to USB A adapters support bidirectional 10Gbps transfer within 3.3 ft
Timeouts and file-size limits to account for
The 2026 pricing page lists a 15 MB maximum file size and a 30-second timeout for the free plan. PDFShift’s FAQ states a 30-second free-plan timeout and a 100-second default timeout for paid plans; it says premium-plan adjustments may be discussed with PDFShift. These are conversion constraints, not rate quotas. Verify the current plan terms for your account before designing around them.
Troubleshoot a PDFShift quota problem
- 429 even at low volume: check whether the request is authenticated, whether sandbox mode is enabled, and the values in the three
X-RateLimit-*headers. - 429 after a burst: stop immediate retries and use
X-RateLimit-Resetto determine when the window resets. - Requests accepted but jobs queue: distinguish the 50-conversion default concurrency limit from requests per minute; queued parallel work is documented to return
202 Accepted. - Monthly allowance runs out earlier than expected: inspect generated output sizes. Files above 5 MB consume multiple credits, rounded up in 5 MB units.
- Processing stops after quota exhaustion: check whether overage is enabled and whether a cap is configured. It is disabled by default according to the Help Center.
- Conversion times out or file is rejected: compare the request with the file-size and timeout terms for your plan, which should be verified on the current pricing page.
Or skip the browser setup
If your task is to capture a webpage as an image or PDF rather than convert HTML into a PDF through PDFShift, ScreenshotNeo offers a one-request screenshot API. Its cookie and consent-banner cleanup accepts the banner as a visitor and removes 60+ known consent platforms, newsletter popups, and chat widgets before capture; each cleanup step can be turned off. Bot checks, blank pages, timeouts, failed loads, and cache hits are not billed, and responses identify the page verdict and billing status in headers. Its MCP server provides screenshot tools for AI agents, and the free plan includes 1,000 screenshots per month with no card; paid plans start at $5 for 3,000.
cURL example (see the ScreenshotNeo API documentation):
Best Value
- 5-in-1 Connectivity: Equipped with a 4K HDMI port, a 5 Gbps USB-C data port, two 5 Gbps USB-A ports, and a USB C 100W PD-IN port. Note: The USB C 100W PD-IN port supports only charging and does not support data transfer devices such as headphones or speakers.
- Powerful Pass-Through Charging: Supports up to 85W pass-through charging so you can power up your laptop while you use the hub. Note: Pass-through charging requires a charger (not included). Note: To achieve full power for iPad, we recommend using a 45W wall charger.
- Transfer Files in Seconds: Move files to and from your laptop at speeds of up to 5 Gbps via the USB-C and USB-A data ports. Note: The USB C 5Gbps Data port does not support video output.
- HD Display: Connect to the HDMI port to stream or mirror content to an external monitor in resolutions of up to 4K@30Hz. Note: The USB-C ports do not support video output.
- What You Get: Anker 332 USB-C Hub (5-in-1), welcome guide, our worry-free 18-month warranty, and friendly customer service.
curl -G "https://api.screenshotneo.com/v1/shot" -d access_key=YOUR_API_KEY --data-urlencode url=https://stripe.com -o shot.webpScreenshotNeo is a different service for webpage screenshots, not a way to raise PDFShift’s conversion quotas. Learn about ScreenshotNeo or sign up for 1,000 free screenshots a month with no card.
Frequently Asked Questions
Does PDFShift publish different request limits by plan?
The cited rate-limit page lists limits by authentication context and sandbox mode, not by subscription plan; it does not state whether account-specific exceptions exist.
Does a 202 response mean a conversion failed?
No. PDFShift’s FAQ says queued parallel conversions return 202 Accepted and a webhook is sent for each converted source.
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
