Combines PNG images into one PDF with one image per page. Each page is sized to its image's pixel dimensions and the PNG is embedded without lossy re-compression.
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Add Files
2
Process
3
Download
Processed in your browser — your file is not uploaded.
Drop your files here
or click to browse files
Up to 50 files
PNG → PDF conversion:
Upload multiple PNG images
Each image becomes one page
Transparency preserved in PDF
Supports drag & drop reordering
How to Use
1Drop your PNG files onto the upload area, or click to browse. You can add up to 50.
2Drag files in the list to set the page order.
3Click Convert to PDF.
4Download images.pdf.
About this tool
Updated
Each image becomes one page, at its own size
Every image you add becomes a single PDF page, and that page is sized to the image itself rather than to A4 or Letter. Pages appear in the order of your file list.
The page size is taken straight from the image's pixel dimensions, treated as PDF points. A 1200 by 800 pixel photo therefore produces a page roughly 16.7 by 11.1 inches, because a point is one seventy-second of an inch. That sounds odd, but it is the behaviour you want for a screenshot or a scan: the image fills the page edge to edge with no margin and no white band, and nothing is cropped or scaled down. If your images have different dimensions, the resulting PDF will have pages of different sizes.
What happens to image quality
PNG and JPEG files are embedded exactly as they are, with no re-encoding. Other formats are converted to JPEG first, which does lose a little quality.
If you add a PNG or a JPEG, its original compressed data is placed inside the PDF untouched, so the page looks identical to the file you started with and the PDF is roughly the size of your images added together. Any other format, including WebP, AVIF and BMP, has to be decoded and re-encoded as JPEG at high quality before it can go in. That single re-encode is usually invisible, but it is a real loss, and it also flattens transparency onto a white background because JPEG cannot store an alpha channel.
One behaviour worth knowing about
If a file cannot be read, it is skipped and the remaining images are still turned into a PDF.
A corrupt or unsupported file does not stop the job or produce an error page. It is simply left out, and you get a PDF built from everything else. This keeps a long batch from failing at image forty of fifty, but it does mean you should count the pages in the result before you send it on. If the count is lower than the number of files you added, one of them was rejected.
When a different tool fits better
Use this when you want images as full-bleed pages. If you need a standard paper size, or the images are too large, convert first.
This tool has no page-size, margin or orientation setting by design. To end up with real A4 or Letter pages, make the PDF here and then run it through PDF Page Size Converter. If the images are very large and the PDF comes out too heavy to email, compress the images first and then build the PDF, since compressing afterwards cannot undo data already embedded.
Every PDF tool on Synthixx grouped by job, with one honest sentence on each, its main limitation, and a clear list of what the site does not offer.
Features
Accepts .png files only, up to 50 per run
One image per page; page size equals the image's pixel size
PNG is embedded directly with no lossy compression
Drag-and-drop reordering before converting
Runs in your browser; the file is not uploaded
FAQ
Is PNG transparency kept?
The PNG is embedded as it is, so transparent areas stay transparent inside the PDF; a viewer will show them against its page background, usually white.
Can I use JPG files here?
This page accepts PNG only. Use JPG to PDF for JPEG photos, or Combine Files to PDF to mix formats.
Can I set an A4 page size?
No. Every page is exactly the size of its image, with no margins.
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