Do my images get uploaded anywhere?
No. The conversion runs entirely in your browser on your own device. Your PNG files are never sent to a server, we never see them, and nothing is stored. That makes it safe for screenshots, diagrams, and confidential client files, unlike converters that upload your images to the cloud to process them.
Can I combine several PNG images into one PDF?
Yes. Add as many PNG images as you like, use the up and down arrows to set the order, and each one becomes its own page in a single PDF, sized to match the image so nothing is stretched or cropped.
What happens to transparent areas in a PNG?
PNG areas that were transparent show as white in the PDF, since a PDF page has a solid background. Everything else is placed at full pixel resolution, and the original files on your device are never changed.
Does this work on Windows?
Yes. It runs in any modern browser on Windows, Mac, or Linux, does the whole conversion on your own device, and never asks you to install anything.
I work with heavy CAD drawings all day. What about those?
Turning images into a PDF is the easy part. The hard part is opening and marking up a 50-200 MB+ AutoCAD, Revit or ArchiCAD export without your PDF tool freezing on scroll and zoom. That is what we built Ncored for, a fast desktop PDF editor for large construction drawings on Windows and Apple Silicon Mac. 14 days free. No signup, no email, nothing to enter.