Merge PDF
Combine multiple PDFs into one document in your chosen order.
PDF toolsPNG to PDF
Convert PNG images to PDF or combine multiple PNG files into one PDF.
Processed locally in your browser — your file is not uploaded.How is this private?
Processing happens in this browser tab, so files are not uploaded to Metyris for processing. Reloading or closing the page clears working data, though your browser may retain temporary files or downloads. Very large files can exceed available browser memory.
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How to use PNG to PDF
- Add one or more PNG images.
- Arrange the PDF page order with drag-and-drop or the arrow buttons, and remove any image you do not need.
- Choose page size and margins, then create and download one PDF.
What happens to transparency?
Transparent image areas appear on a white PDF page. Each image becomes its own page.
No sign-up is required. The calculation or transformation happens in this browser tab and the result is available immediately.
BEFORE YOU RELY ON THE RESULT
Practical guidance
Use this tool when several PNG files need to become one PDF. Add the images, set their page order, and create the download without sending the files to a server.
Combine PNG images in the right order
Add one or more PNG files. The ordered list is the order of pages in the resulting PDF: drag a file to a new position or use the up and down buttons, then remove any file you do not want included.
Each input image becomes one PDF page. Review the file names and page numbers before creating the download, especially when the images are part of a form or document sequence.
Page size, transparency and file size
Choose A4 portrait to fit each image onto a standard page, or natural image size to retain its original dimensions. Margins add white space around the image; mixed dimensions can create different amounts of surrounding space.
Transparent PNG areas are placed on white. Detailed or high-resolution PNG files can produce a large PDF, so check the downloaded file size if you need to meet an upload limit.
Browser-local limits
The tool accepts up to 50 PNG images, 30 MB each, 100 MB combined, and 40 megapixels per image. Large batches can still reach the memory limit of an older phone or browser.
Image decoding and PDF creation run in a browser worker on this device. Your images are not uploaded to a Metyris processing server.
Related workflow
- JPG to PDFcreate a PDF from photographs
- Image to PDFcombine JPG, PNG and WebP files in one batch
- Merge PDFcombine PDFs after converting images
Good to know
Can I combine multiple PNG images into one PDF?+
Yes. Add up to 50 PNG images, arrange them in the page order you want, then download one PDF with one image on each page.
Can I change the image order before creating the PDF?+
Yes. Drag files in the list to reorder them, or use the up and down buttons. The list shows the PDF page order used for the download.
Are my PNG images uploaded to Metyris?+
No. The images are processed in your browser with a local worker and are not uploaded to a Metyris processing server.
Does PNG transparency stay transparent in the PDF?+
No. Transparent PNG areas are placed on a white PDF background because PDF pages are created from a local canvas image.
Does converting PNG to PDF reduce image quality?+
The tool keeps the image dimensions and places each PNG on a PDF page. The output size can still be large for detailed images, and PDF page sizing can add surrounding white space.