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To make a wkhtmltoimage screenshot smaller without making it hard to read, reduce JPEG quality gradually and inspect the result at its intended display size. If the image includes unused page area, reduce the capture width or crop the region instead of shrinking every detail. There is no universal quality or width setting that preserves readability on every page.
Choose an output format for the content
wkhtmltoimage documents JPG, PNG, BMP, and SVG output. Its --quality option controls JPEG compression; it is not a general quality control for every format. The documentation does not publish a format-by-format size or readability benchmark. Ubuntu’s wkhtmltoimage manual and the Debian 0.12.6-2 source describe these options.
- Photographs or mixed content: Try JPG and adjust its quality setting in small steps. JPEG compression can reduce file size, but inspect text and edges for artifacts.
- Text-heavy interfaces, diagrams, or sharp edges: Compare PNG with JPG at the actual display size. PNG avoids the JPEG-specific quality tradeoff, but the cited documentation does not establish which format will be smaller for your page.
- Need transparency or vector output: Consider whether a documented format meets that requirement, and verify how the viewer or downstream application handles the result.
Reduce unnecessary pixels without cutting off content
The --width option sets the rendering screen width, but it is a guide by default. --disable-smart-width makes the specified width strict; that may leave content outside the width, so inspect the image for clipping. If only part of a page matters, use crop width and height and crop coordinates to bound the captured region rather than reducing the entire page.
Zoom is also available, but it changes the rendered scale and composition. Check small text and page layout after changing it; the documentation does not identify a universally optimal zoom value.
#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.
Try a measured JPEG starting point
This command uses example values, not settings proven to suit every page:
wkhtmltoimage --width 1200 --quality 85 input.html screenshot.jpgThe documented --quality range is 0–100. Try lower values in steps, compare the resulting file sizes, and keep the lowest setting that remains legible at the final viewing size. Confirm your installed binary’s supported options with its help output because builds and wrappers can vary.
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.
Make the comparison repeatable
- Choose representative pages, including the densest text or most important fine detail.
- Render each page with a few JPEG quality values, keeping other settings constant.
- Compare byte sizes and inspect text, icons, and edges at the image’s intended display size.
- Check that the whole required page or region is present. If not, adjust width or crop settings and repeat the comparison.
- Compare PNG if sharp text or edges show unacceptable JPEG artifacts. Record the format and settings that work for each type of page.
This is a practical comparison method, not a benchmark: the documentation supplies option ranges and controls, not a quality threshold or file-size result.
Separate capture timing from image compression
The library settings document a JavaScript delay after page load. Increase or otherwise tune that delay only when the page needs time to display the content you want captured. It affects the captured page state, not the compression rate, so it should not be treated as a file-size setting.
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.
Troubleshoot small or unreadable results
- The file is still large: If you are saving JPG, lower
--qualityincrementally and compare. If the capture contains blank margins or irrelevant regions, adjust the capture width or crop rather than sacrificing detail everywhere. - Text looks smeared or edges show artifacts: Raise JPEG quality or compare PNG. Inspect at the actual display size; a preview enlarged beyond its intended use can make artifacts seem more prominent.
- Content is missing at the sides: Check whether strict width was enabled with
--disable-smart-width. Widen the capture or use a crop that includes the needed region. - The output does not reflect dynamic content: Tune the JavaScript delay to the page’s loading behavior and capture again. A delay will not make the image itself more compressed.
- An option is unavailable or behaves differently: Check the installed binary’s help output and version. The cited implementation is Debian’s wkhtmltopdf 0.12.6-2; other builds and wrappers may differ.
Or skip the browser setup:
ScreenshotNeo is a website screenshot API and MCP server. A single GET request can return a screenshot or PDF; its capture options include output format and image resizing. See the ScreenshotNeo API documentation for the current request options.
curl -G "https://api.screenshotneo.com/v1/shot" -d access_key=YOUR_API_KEY --data-urlencode url=https://stripe.com -o shot.webpScreenshotNeo accepts cookie and consent banners and removes more than 60 known consent platforms, newsletter popups, and chat widgets before capture; each step can be turned off. Bot checks or CAPTCHAs, 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 offers take_screenshot, get_page_info, and capture_pdf for AI agents. The Free plan includes 1,000 screenshots per month with no card; paid plans start at $5 for 3,000. Sign up for free.
Frequently Asked Questions
What does wkhtmltoimage’s –quality option control?
It controls JPEG compression and accepts values from 0 to 100; it does not provide a documented readability guarantee.
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
Does –width always force the screenshot to that exact width?
No. It is a guide by default; –disable-smart-width makes it strict, with a risk of clipping content.
Quick Recap
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.
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