Markdown image syntax is simple, but converting those images to PDF depends on whether the browser can actually retrieve each asset. The converter cannot infer a repository folder, local screenshot directory, or private authenticated image source from a standalone .md file.
Start with the Markdown to PDF converter and confirm every image in the preview before downloading.
Use a reachable image reference

An absolute HTTPS URL is the most portable option. A path such as ./assets/architecture.png only works when the renderer has access to that exact directory structure.
Image checklist before export
- Confirm that the preview displays the full image.
- Check that the URL opens without a separate login.
- Use a suitable resolution without an unnecessarily large file size.
- Add concise, descriptive alt text.
- Avoid very wide images containing tiny labels.
If an image is wider than a document page, scale the source asset or redesign it vertically. Shrinking a dense desktop screenshot to page width often makes its text unreadable.
Common failure modes
Relative paths: the referenced file was not supplied to the browser.
Private URLs: the image requires authentication or a temporary token.
Blocked cross-origin loading: the image host allows display but blocks the capture process used during PDF generation.
Unsupported format: convert unusual image formats to PNG or JPEG when portability matters.
Keep the PDF useful if an image fails
Alt text should describe the information conveyed by the image, not simply say “screenshot.” Add a short paragraph below critical diagrams so the document remains understandable in text-only contexts.
Once the preview is correct, export through Markdown to PDF. If the images still do not load in the preview, fix their sources before generating another PDF; repeated export attempts cannot repair an unreachable URL.
Key takeaways
- Replace local relative paths with reachable image sources
- Preview every image before generating the PDF
- Use descriptive alt text for accessibility and fallback context
Try the main MD Opener workflow
If this guide matches what you were searching for, the fastest next step is to use the MD Opener homepage to open your file immediately. The homepage is built for instant Markdown previews, clear formatting, and a low-friction browser experience.
You can also continue through the Workflow Guides cluster to explore more articles with similar search intent.
Frequently asked questions
Why are images missing after Markdown to PDF conversion?
The most common reason is a relative local path that the browser cannot resolve from the standalone Markdown file.
Can I use images hosted on the web?
Yes, provided the image URL is reachable by the browser and the host permits it to be loaded during the export process.
Does image alt text appear when the image fails?
Renderers may show alt text when an image cannot load, so descriptive text still gives readers useful context.