PDF to Long Image Strip
Local Processing (Offline Capable)Stitch multi-page PDF documents into a continuous, high-definition vertical long image strip (PNG/JPG/WebP/AVIF). Customize gaps, resolution, and page badges. Fully local.
How this tool works (no sign-up needed)
- Upload your file above. Each tool shows whether it runs Local (in your browser) or Cloud (encrypted servers).
- Adjust options, then click the Run / Convert / Process button.
- Wait for progress, then download the result. Use Next tools to continue.
If buttons are not visible, enable JavaScript — the interactive workspace loads in your browser.
Free · 100% LocalStitch multiple PDF pages into a seamless, high-res vertical long image
Supports application/pdf,.pdf
Local — your file is processed in your browser and not uploaded to us. No account needed.
What is it?PDF to Long Image Strip is a PDFLean conversion tool: Stitch multi-page PDF documents into a continuous, high-definition vertical long image strip (PNG/JPG/WebP/AVIF). Customize gaps, resolution, and page badges. Fully local.
TL;DR: Stitch multi-page PDF documents into a continuous, high-definition vertical long image strip (PNG/JPG/WebP/AVIF). Everything runs locally in your browser — your file is never uploaded; oversized documents are auto-split into ZIP-packaged tiles beyond the Canvas limit.
About this tool
This tool does one job and does it entirely on your device. Stitch multi-page PDF documents into a continuous, high-definition vertical long image strip (PNG/JPG/WebP/AVIF). Customize gaps, resolution, and page badges. Fully local. Processing runs locally in your browser's memory — the document is never transmitted, and closing the tab clears it completely. The workflow is deliberately short: load the file, choose the options on the page, run the operation, and save the result. Every choice is applied before the file is written, so re-running with different settings takes seconds. Output covers PNG, JPG, WebP, AVIF; Practical limits apply (see the on-page limits); it pairs well with the related tools linked beside this page when one step is not the whole job. Key facts — Processing: runs entirely in your browser, client-side; Access: free with no account required; File limits: see the on-page limits; Privacy: the file never leaves the device.
How to use
Select or drop your PDF document into the workspace
Choose resolution scale (1.0x standard, 1.5x mobile HD, 2.0x retina, or 3.0x ultra) and page spacing
Select export format (PNG, JPG, WebP, AVIF), divider decorations, and background color
Click "Generate Long Image Strip" to preview, download, or copy to clipboard
FAQ
How does the tool handle pages with different widths?
It auto-aligns them! The widest page is taken as standard, and narrower pages are scaled proportionally to match the uniform width while preserving their exact aspect ratios.
Can I stitch huge PDFs with hundreds of pages?
Browsers enforce maximum Canvas dimensions (~32,767px). Our engine includes canvas size protection: when a side or the total pixels exceed the safe limit, the strip is automatically split into full-resolution tiles packaged as a ZIP. For very lengthy documents, specifying page ranges (e.g. 1-20) is recommended.
What image formats are supported, and which yields the smallest size?
Supports PNG (lossless crisp text), JPG (ideal for photo-heavy docs), modern WebP (ultra-small size), and next-generation AVIF (smallest file size) across four format choices.
Can I customize vertical page spacing and background color?
Choose from four preset page gap options (0px seamless, 12px subtle, 24px comfortable, 48px poster cards) and three background fills (pure white #ffffff, soft slate #f8fafc, and dark #0f172a).
Is the output resolution high enough for sharp mobile reading?
Renders at 1.5x by default, with 2.0x Retina and 3.0x ultra options, so text, charts, and diagrams remain razor-sharp when viewed or zoomed on mobile devices.