What’s actually slowing this PC down?
Pick the symptom - the matching free tool is one click away.
There is no general wkhtmltopdf switch that enables every kind of SVG. The documented SVG options target checkbox and radiobutton controls. For other artwork, reliable output depends on your wkhtmltopdf version and Qt build, how the SVG is embedded, and which SVG features it uses. Start with a minimal reproduction, test the inclusion method and inspect the generated PDF at high zoom. If the result is still blank, incomplete or rasterized, convert the SVG with librsvg or CairoSVG before inserting it into your document workflow.
What wkhtmltopdf actually supports
wkhtmltopdf converts HTML to PDF using a Qt-based rendering engine. Its usage documentation lists four SVG-related options:
--checkbox-checked-svg--checkbox-svg--radiobutton-checked-svg--radiobutton-svg
Those options supply artwork for checked and unchecked form controls. They are not a general-purpose “turn on SVG support” setting for logos, diagrams, charts or arbitrary inline graphics. Treat ordinary SVG rendering as a compatibility question that must be tested with your exact binary.
Diagnose the renderer before changing your HTML
Record the version and Qt build
Run:
wkhtmltopdf --versionSave the complete output, including whether it says the binary uses patched Qt. Issue reports show different behavior between distribution builds without patched Qt and patched-Qt builds; the version number alone does not identify the rendering path.
Recommended Free Tools
#1 Best Overall
Make a one-file reproduction
Create a small HTML file that contains one SVG and no framework, JavaScript bundle or external stylesheet. Use the same command you use in production:
wkhtmltopdf test.html test.pdfA minimal inline test helps distinguish SVG compatibility from URL, asset, CSS or timing problems. If your SVG is a local file and your build blocks local resources, use the local-file-access option supported by that build or serve the test directory over HTTP. Keep the exact command in your test notes so a later build comparison is meaningful.
Inspect the PDF, not only the HTML preview
Open the PDF at high zoom. A graphic that looks correct in a browser can be absent, clipped, opaque, or converted to a bitmap in the PDF. If scalable vector output is a requirement, zoom far beyond normal reading size or inspect the PDF with a tool that can identify image and path objects. A reported wkhtmltopdf 0.12.5 patched-Qt case produced rasterized SVG artwork, so the .svg extension in your source is not proof that the PDF contains vectors.
Test each SVG inclusion method
Do not assume that <img>, inline SVG and <object> take the same rendering path. Build a test page with one copy of the same artwork in each form:
The Tool Desk
Outbyte Driver Updater FREEFix the driver behind crashes, sound loss and screen glitchesFind Drivers →Outbyte PC Repair FREERepair Windows errors before they cause bigger problemsFix Now →<!-- External SVG as an image -->
<img src="logo.svg" width="320" height="120" alt="Company logo">
<!-- Inline SVG -->
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 320 120"
width="320" height="120" role="img" aria-label="Company logo">
<rect width="320" height="120" fill="#123456"/>
<path d="M30 90 L90 30 L150 90 Z" fill="#fff"/>
</svg>
<!-- Object embedding -->
<object data="logo.svg" type="image/svg+xml" width="320" height="120">
<img src="logo-fallback.png" width="320" height="120" alt="Company logo">
</object>A 2017 issue report describes an <object>-included SVG rendering blank while another inclusion path behaved differently. That is a failure mode to investigate, not a universal rule that one tag always works. Test the method that matches your production markup and retain a PNG fallback when a missing logo is unacceptable.
SVG features that commonly expose build differences
Embedded raster images
SVG files that contain JPEG or PNG data can fail differently from paths and simple fills. A report involving wkhtmltopdf 0.12.3 with patched Qt found that an embedded JPEG did not appear when the SVG was loaded as an image; putting the SVG markup directly in HTML produced a different, still imperfect result. Temporarily remove the embedded image and render the paths alone. If the paths work, either externalize the raster image or pre-render the complete asset.
Clipping paths and opacity
Another report compared a distribution build and a patched-Qt build and identified problems involving clip-path and opacity. Reduce the file to one clipping path or one translucent element, then add effects back one at a time. This isolates a feature limitation from an unrelated layout error.
External resources, fonts and CSS
Keep fonts, images and stylesheets available to the converter at capture time. A browser may resolve a relative URL, wait for a web font and execute application code before painting; a headless conversion can reach a different state. For a deterministic test, inline critical CSS and use local or fully qualified asset URLs that your build can access.
Free tools Windows power users keep installed
One-click scans. No signup required.
Rank #3
- New
- Mint Condition
- Dispatch same day for order received before 12 noon
- Guaranteed packaging
- No quibbles returns
A repeatable troubleshooting procedure
- Capture the environment. Record
wkhtmltopdf --version, operating system, package source and patched-Qt status. - Reduce the input. Use one HTML file, one SVG and a plain background. Remove frameworks, animations and unrelated JavaScript.
- Compare inclusion modes. Test inline SVG,
<img>and<object>separately. Save each PDF with a distinct name. - Bisect SVG features. Remove embedded images, clipping paths, opacity, masks, filters and external fonts; restore them individually.
- Check resource access. Confirm every image, stylesheet and font URL is reachable from the conversion process. Verify local-file permissions for your build.
- Check timing. If the SVG is inserted by JavaScript, make a static test file or wait for a selector/delay in the surrounding workflow before converting.
- Verify the PDF representation. Inspect at high zoom and determine whether the artwork is missing, clipped, blurred or rasterized.
- Choose a fallback deliberately. Simplify the SVG, convert it separately to PDF or PNG, or isolate that page in another renderer instead of repeatedly changing unrelated HTML.
Use a dedicated SVG converter when fidelity matters
When wkhtmltopdf cannot render the artwork acceptably, convert the asset before the HTML-to-PDF step. This separates SVG parsing from page layout and gives you a known intermediate file.
librsvg and rsvg-convert
GNOME’s librsvg documentation describes rsvg-convert output to PDF and includes page-sizing controls. A typical conversion is:
rsvg-convert -f pdf -o logo.pdf logo.svgUse the documented width and height options when the SVG’s intrinsic size does not match the page slot. Then place the resulting PDF in a workflow that supports PDF fragments, or convert it to a PNG at the final display resolution when your HTML engine only accepts raster images. Verify transparency, page dimensions and any filters used by the original file.
CairoSVG
CairoSVG describes itself as an SVG 1.1 to PNG, PDF, PS and SVG converter. Its Python API can produce either PDF or PNG:
Quick wins for a faster PC:
Repair Windows errors before they cause bigger problemsFix Now →Fix the driver behind crashes, sound loss and screen glitchesFind Drivers →Clear out junk files and repair common Windows errorsFree Scan →Rank #4
- Used Book in Good Condition
import cairosvg
cairosvg.svg2pdf(url="logo.svg", write_to="logo.pdf")
cairosvg.svg2png(url="logo.svg", write_to="logo.png", output_width=1200)Check CairoSVG’s supported-feature documentation against your artwork. Conversion is not a guarantee that every SVG filter, mask, font or embedded resource will match a browser. Render a proof PDF and compare it with the source before deploying the result.
Choosing PDF versus PNG
| Approach | Vector output | Embedded images | Pipeline fit | Main qualification |
|---|---|---|---|---|
| wkhtmltopdf with original SVG | Not guaranteed; inspect the PDF | Can fail in particular builds and inclusion modes | Lowest change to an existing HTML job | Behavior depends on version, Qt build and SVG features |
librsvg rsvg-convert to PDF |
Designed for PDF conversion | Test the source artwork | Requires a separate conversion step and a way to place PDF output | Use documented page-sizing controls for your layout |
| CairoSVG to PDF | PDF conversion available | Test against its supported features | Python or CLI integration | Documentation notes feature limitations |
| Dedicated converter to PNG | No; raster by design | Usually simpler to place in HTML | Works with image-only pipelines | Choose output dimensions and inspect for blur |
Use PDF output when the downstream document pipeline can place it and scalable artwork is important. Use PNG when predictable placement in HTML is more valuable than infinite zoom, and generate it at a sufficient output size.
Common symptoms, causes and fixes
| Symptom | Likely cause to test | Practical fix |
|---|---|---|
| Entire SVG is blank | <object> handling, inaccessible URL or unsupported external resource |
Try inline SVG and <img>; verify resource access; keep a PNG fallback |
| Paths appear but an embedded photo is missing | Embedded raster-image handling in the installed build | Externalize the image, simplify the SVG, or pre-convert it |
| Artwork is clipped | clip-path, viewBox or page-size interaction |
Test without clipping, set an explicit viewBox and dimensions, then compare a converted PDF |
| Transparency looks opaque | Opacity/compositing difference between Qt builds | Test a flat-color version or pre-render with librsvg/CairoSVG |
| PDF looks sharp at normal size but blurry when enlarged | SVG was rasterized | Inspect the PDF representation and use a vector-capable conversion path |
| Works on one machine only | Different package, Qt patch, fonts or resource permissions | Pin and record the renderer build; run the minimal fixture in every deployment environment |
Maintenance implications
The upstream wkhtmltopdf repository was archived on January 2, 2023. That status does not establish whether a distributor or fork is maintained, but it does mean a workaround should be evaluated as a maintenance decision, not only a one-line command change. Keep a fixture containing the SVG features your product uses, compare PDFs after package updates, and document the exact converter used for production.
Or skip the browser setup
If your immediate need is a clean visual capture of the rendered page rather than a locally managed wkhtmltopdf pipeline, ScreenshotNeo provides a website screenshot API and MCP server. It accepts cookie and consent banners before capture and removes more than 60 known consent platforms, newsletter popups and chat widgets; each step can be turned off. Bot checks, CAPTCHAs, blank pages, timeouts, failed loads and cache hits are not billed, and the response identifies the result with X-Page-Verdict and X-Billed headers. It is not a promise of SVG vector preservation in a PDF, so keep the converter workflow above when PDF internals matter.
One GET request is enough for a screenshot (see the ScreenshotNeo API documentation):
curl -G "https://api.screenshotneo.com/v1/shot" -d access_key=YOUR_API_KEY --data-urlencode url=https://example.com -o shot.webpimport requests
r = requests.get("https://api.screenshotneo.com/v1/shot", params={"access_key": "YOUR_API_KEY", "url": "https://example.com"}, timeout=90)
open("shot.webp", "wb").write(r.content)const q = new URLSearchParams({ access_key: 'YOUR_API_KEY', url: 'https://example.com' });
const res = await fetch(`https://api.screenshotneo.com/v1/shot?${q}`);ScreenshotNeo also offers an MCP server for Claude, Cursor and other MCP clients, with take_screenshot, get_page_info and capture_pdf tools. Every feature is on every plan: 1,000 shots per month are free with no card; paid plans start at $5 for 3,000 shots. Sign up for the free ScreenshotNeo plan.
FAQ
Do the checkbox SVG flags enable logos and charts?
No. They are documented for checkbox and radiobutton control artwork, not as a universal SVG compatibility switch.
How can I prove that a PDF still contains vectors?
Inspect the generated PDF at high zoom and with a PDF inspection tool; browser sharpness alone cannot establish the internal representation.
Should I replace wkhtmltopdf immediately?
Not necessarily. First reproduce the failure with your exact build and SVG. Replace or isolate the step when required features remain unreliable, considering the archived upstream repository.
Frequently Asked Questions
Can I fix every SVG problem with a wkhtmltopdf command-line flag?
No. The documented SVG flags are limited to checkbox and radiobutton artwork; general SVG rendering requires testing the build, inclusion method and artwork features.
Is an SVG in the HTML guaranteed to remain vector in the PDF?
No. Reported wkhtmltopdf output has rasterized SVG artwork, so inspect the PDF when vector scalability is a requirement.
What is the safest fallback for a troublesome SVG?
Convert it separately with librsvg or CairoSVG, verify the converted output, and insert PDF or PNG according to the capabilities of your document pipeline.
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.
