What image size should I generate for sharing a PDF on LinkedIn?

LinkedIn displays shared images at 1200×627px. Generate a thumbnail at 1200px wide — Deliteful will preserve the PDF's aspect ratio, and you can crop to 627px height in your image editor if needed.

Can I generate separate thumbnails at different sizes for different channels?

Yes. You can upload the same PDF multiple times and render at different widths — for example, 1200px for social and 512px for your content hub card — in a single session.

Should I use PNG or JPEG for a whitepaper cover thumbnail?

PNG is recommended for most whitepaper covers — it preserves text sharpness and chart clarity with lossless compression. Use JPEG only if the cover is photograph-heavy and file size is a concern.

Does the tool work with PDFs exported from InDesign or Google Slides?

Yes. Deliteful renders the PDF page as a raster image regardless of the source application. PDFs exported from InDesign, Google Slides, PowerPoint, or any other tool are all supported.

Generate PDF Preview Thumbnails for Content Publishing Workflows

Content publishers distributing whitepapers, research reports, and PDF guides need eye-catching preview images for content hubs, email newsletters, and social posts — but producing those images from finalized PDFs adds a last-mile production step that stalls publishing timelines. Deliteful renders a specific PDF page as a PNG or JPEG thumbnail at any width up to 2048px, so your content is ready to promote the moment it's finalized.

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Content teams typically finalize a PDF report in InDesign or Google Slides, export to PDF, and then realize they need a cover image for the landing page, a preview for LinkedIn, and a thumbnail for the email CTA — three separate image exports from three different tools. Deliteful collapses this into one step: upload the PDF, pick the cover page or a visually compelling interior spread, set the output width for each destination, and download. LinkedIn recommends 1200×627px for shared images; a 1200px-wide render from Deliteful gets you most of the way there.

For content publishers, PNG output is recommended for reports with charts, infographics, and text — it preserves sharpness and renders gradients cleanly. JPEG is better suited to photography-led covers where compression artifacts are less noticeable. Transparent backgrounds on branded cover pages are automatically handled for JPEG output, so you won't get unexpected black fills.

How it works

1
Upload the finalized PDF
Upload the whitepaper, report, or guide PDF you're preparing to publish.
2
Choose the page to feature
Enter the page number — the cover (page 1) for most uses, or an interior page with a compelling infographic or key stat.
3
Set width for your distribution channel
Enter the max width matching your destination: 1200px for social, 600px for email, 512px for a content hub card.
4
Download and publish
Download the thumbnail and drop it directly into your CMS, email platform, or social scheduling tool.

Frequently asked questions

What image size should I generate for sharing a PDF on LinkedIn?: LinkedIn displays shared images at 1200×627px. Generate a thumbnail at 1200px wide — Deliteful will preserve the PDF's aspect ratio, and you can crop to 627px height in your image editor if needed.
Can I generate separate thumbnails at different sizes for different channels?: Yes. You can upload the same PDF multiple times and render at different widths — for example, 1200px for social and 512px for your content hub card — in a single session.
Should I use PNG or JPEG for a whitepaper cover thumbnail?: PNG is recommended for most whitepaper covers — it preserves text sharpness and chart clarity with lossless compression. Use JPEG only if the cover is photograph-heavy and file size is a concern.
Does the tool work with PDFs exported from InDesign or Google Slides?: Yes. Deliteful renders the PDF page as a raster image regardless of the source application. PDFs exported from InDesign, Google Slides, PowerPoint, or any other tool are all supported.

Create your free Deliteful account with Google and publish your next PDF report with a professional preview image in minutes.