How to Combine PNG Screenshots into a Single PDF Report

You've just finished a UI review, a bug investigation, or a design iteration. You have 15 PNG screenshots. Your client or manager wants a single PDF. Emailing 15 individual files is messy. Sharing a folder link feels informal. The clean answer is one ordered PDF document — here's how to do it quickly. Why PNG → PDF makes sense Single file — one attachment, not a folder Ordered — you control the page sequence Universal — opens on any device without losing layout Professional — better for client handoffs, sprint reviews, and design approvals Option 1: Command line (ImageMagick) If you're on Linux/macOS and want to automate this: convert screenshot-1.png screenshot-2.png screenshot-3.png output.pdf Enter fullscreen mode Exit fullscreen mode Or for a whole directory: convert *.png output.pdf Enter fullscreen mode Exit fullscreen mode Works well for batch automation in CI pipelines or local scripts. Note: ImageMagick may need Ghostscript installed for PDF output (sudo apt install ghostscript on Ubuntu). Option 2: Quick online tool (no setup) When you just need to get it done in 30 seconds — drag the PNGs in, reorder them, download the PDF. PDFLines lets you combine PNG to PDF online without installing anything. Upload multiple files, drag thumbnails to set the page order, convert. No watermarks, no account required, files are deleted after the download window. Steps: Open the tool Drag and drop your PNG files Reorder thumbnails if needed Click Convert Download the PDF Under a minute for a typical 10–20 screenshot batch. When to use which Situation Approach One-off report for a client Online tool — faster Recurring CI/CD visual diff ImageMagick in a script Shared workflow with non-devs Online tool — no setup for them Air-gapped environment ImageMagick local Bonus: ordering matters If you name screenshots with zero-padded numbers (01-login.png, 02-dashboard.png...), convert *.png picks them up in the right order automatically. For the online approach, drag thumbnails to arrange before converting. One PDF, correct page order, ready to share.