Convert ICO to PDF
ICO is the Windows icon format, used for favicons and application icons. Converting to PDF wraps the picture in a document instead of an image file, which is what printers, email attachments and upload portals tend to expect. The conversion runs entirely in your browser: there is no upload, no file size limit and no watermark on the result.
Drop your ICO files below and download PDF in seconds. Free, unlimited and completely private: the conversion runs inside your browser, so your files never leave your device and are never uploaded to a server.
No upload. Works with your network switched off. Check it yourself, or read what actually happens to your file.
Why convert ICO to PDF?
ICO files bundle one or more icon sizes into a single file that Windows and browsers use for favicons and app icons. Regular image viewers often refuse to open them, and most editors cannot save them, so a converter is the practical way in or out of the format.
PDF is the universal format for documents that must look identical everywhere. Wrapping images in a PDF makes them easy to print, email or archive as a single file, and every operating system can open the result without extra software.
Note that PDF does not support transparency, so any transparent areas in your ICO files will be filled with a solid background after conversion.
ICO vs PDF at a glance
| ICO | ||
|---|---|---|
| Full name | Windows icon | Portable Document Format |
| Compression | Contains PNG or BMP data | Document container |
| Transparency | Yes | No |
| Best for | Favicons and Windows application icons | Documents, sharing and printing |
What changes when you convert ICO to PDF
| What happens | |
|---|---|
| Image quality | Slightly reduced. The image is embedded in the PDF as JPEG at quality 0.92, which is visually close but not identical. |
| Transparency | Lost. PDF cannot store an alpha channel, so transparent areas are filled with solid white. |
| EXIF and GPS | Removed. The conversion goes through a pixel buffer, so camera data and location are not carried into the PDF file. |
| Colour profile | Not carried across. The image is handled in sRGB, which is right for the web and wrong for colour-managed print work. |
| Animation | Not applicable. ICO files here are single images. |
| File size | Varies with the content of the image. No figure is quoted here, because none has been measured on a documented test set. |
How to convert ICO to PDF
- Drop one or more ICO files into the box above, or click to browse.
- ImageConvert converts each file to PDF right on your device.
- Download a single file, or grab everything at once as a zip.
Frequently asked questions
What is an ICO file?
ICO is the Windows icon format, used for favicons and application icons.
What is a PDF file?
PDF is the universal document format, handy for sharing or printing images.
Is it free to convert ICO to PDF?
Yes. There are no limits, no watermarks and no account needed. Convert as many ICO files as you like.
Are my files private?
Completely. Your ICO files never leave your browser and are never uploaded to a server, so your images stay on your device.