Convert PNG to PDF
Most people converting an image to PDF are not doing it for the format — they are doing it because something upstream refuses to accept a .png. A visa portal, a bank, a university application. This wraps the image in a document container so it goes through.
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Add to Chrome — freeDrop your PNG file here, or click to browse
Up to 50 MB. Deleted automatically after 30 minutes.
What it does
- Image placed on a standard A4 page
- Pixels re-encoded losslessly, so nothing degrades
- Accepted by portals that reject image uploads
- No watermark and no sign-up
How to use PNG to PDF
- 1
Add the PNG
Screenshots, scanned documents photographed and cropped, certificates, or anything an upload form is refusing to take as an image.
- 2
Convert
The image is placed on an A4 page and exported as PDF on our server. A single image takes a second or two.
- 3
Open it before uploading
Check the image sits on the page the way you expect and that any text in it is still readable at normal zoom. A screenshot that was already small will not become sharper for being on a page.
How it works
The PNG is opened as a drawing, placed on an A4 page, and exported to PDF. The image data is embedded rather than re-photographed, so the pixels in the document are the pixels you uploaded.
The conversion runs on our server. Producing a valid PDF means writing a document structure, embedding the image stream and building a cross-reference table, which is not something a browser does for you.
What a PDF adds, and what it does not
It adds a page. That is genuinely the whole difference, and it is enough to satisfy every form that demands a PDF: the file now has a defined size, defined margins, and a predictable printed appearance.
It does not add anything to the image. The text in a screenshot does not become selectable, because it is still pixels — a PDF can contain real text, but only when the source had text to begin with, and yours had an image of text.
Nor does it make anything sharper. Resolution is fixed at the moment the PNG was created. Placing it on a page gives it physical dimensions, which is precisely what exposes a low-resolution source: 600 pixels across an A4 page is about 36 pixels per centimeter, and it will look it.
Getting a usable result
Crop before converting. A photographed document with a desk visible around the edges is scaled to fit the page including the desk, so the document itself ends up small.
Rotate wide images. A landscape diagram on a portrait page wastes most of it. Rotating the image before converting fills the page properly, and the reviewer can turn the page.
Start high-resolution. For anything being printed or read closely, the source should be at least 1500 pixels across the short edge. Below that, the page will show it.
Check what the portal actually wants. Many specify a file size limit as well as a format, and a large PNG produces a large PDF. If it is rejected for size, reduce the image first rather than the document afterwards.
When PDF is the wrong target
If you are converting a scanned page and want to search or copy the text from it, this is not the tool — the output is a picture of a page, not a document with text in it. That needs optical character recognition, which is a different operation entirely.
And if nothing is demanding PDF, there is little reason to convert. A PNG is a perfectly good way to store an image, and the document wrapper only earns its place when something downstream insists on it.
Examples
A screenshot for an expenses claim
The everyday case. The image is scaled to fit the page with margins, the file size barely changes because the pixels are carried across as they are, and the upload form now accepts it.
A wide diagram
Worth looking at before sending. A wide image on a portrait page ends up small with white space above and below. If the diagram has labels on it, they may no longer be readable when printed — rotating the image before converting is usually the fix.
Frequently asked questions
What page size do I get?
A4 portrait, with the image scaled to fit inside it. The page is a fixed size rather than one matched to your image, which matters most for wide or unusually shaped images — they end up smaller on the page than you might expect, surrounded by white space. For a roughly portrait image at ordinary proportions, the result looks like what you would get printing it.
Does the image lose quality?
No. The pixels are carried into the PDF without being re-compressed lossily, so the image inside the document is the image you started with. What does change is context: the image is now placed at a physical size on a physical page, so a low-resolution screenshot that looked fine on screen will look soft when printed. That is the resolution it always had, made visible.
Can I put several images in one PDF?
Not in this tool, which handles one image at a time. Convert each image separately and then combine the results — our merge tool joins PDFs in the order you give it, which is how most multi-page image documents are actually assembled.
Why do upload forms want PDF instead of an image?
Because a PDF is a document with a defined page size, so it prints predictably and looks the same to everyone reviewing it. An image has no page and no physical dimensions, which makes it awkward to print, archive and file consistently. The requirement is about their workflow rather than anything technical about your file.