Step 1: Upload your PNG files using the button above or by drag and drop.
Step 2: Click the 'Convert' button to start the conversion.
Step 3: Download your converted ICO files.
PNG to ICO Conversion FAQ
How do I convert a PNG image to ICO?
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Drop your PNG image into the upload area. PDF.to re-encodes the pixels into the ICO container and gives you the new file in seconds. No account is needed.
Will the PNG to ICO conversion lose detail or sharpness?
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If ICO is a lossless format (PNG, BMP, TIFF), pixel data is preserved exactly. If ICO is lossy (JPG, WebP, JPEG), we use a high default quality setting that is visually indistinguishable from the source for almost all images.
Does the PNG to ICO converter keep transparency?
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When ICO supports an alpha channel (PNG, WebP, GIF) and the original PNG had transparency, we keep it. Converting to a format without transparency (JPG, BMP) fills transparent areas with white by default.
Does it preserve EXIF, color profile, and DPI from my PNG file?
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ICC color profiles and DPI tags are preserved when ICO supports them. EXIF metadata (camera, GPS, timestamps) is stripped by default for privacy; turn it on in PRO if you need it.
Can I convert a vector PNG to a raster ICO (or vice versa)?
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Yes. Vector-to-raster conversions rasterize at a sensible default resolution (typically 2× display); you can override the DPI in the options panel. Raster-to-vector is best-effort tracing and works best on logos and line art, not photographs.
What is the largest PNG image I can convert to ICO?
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Free accounts: up to 100 MB or 50 megapixels per image. PRO accounts: up to 5 GB and 1 gigapixel per image, which covers large scans and panoramas.
Can I batch-convert PNG images to ICO?
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Yes — drag a folder of PNG files onto the page. Each is converted independently and zipped into a single download when done.
Will the converted ICO have the same dimensions as my PNG?
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Yes — pixel dimensions are preserved by default. If you want to resize during conversion, use the ICO resize tool after the conversion finishes.
Is my PNG image private when I convert it?
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Yes. Uploads are encrypted in transit, the conversion job runs on an isolated worker, and the original PNG plus the resulting ICO are deleted within an hour.
Why is my converted ICO file larger than the original PNG?
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If ICO is lossless and PNG was lossy (or vice versa), file size will change. PNG (lossless) is typically larger than JPG (lossy) for photographs but smaller for solid-color graphics and screenshots.
Does the PNG to ICO converter handle animated images?
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If PNG is animated (GIF, WebP, APNG) and ICO also supports animation (GIF, WebP), all frames are preserved. Converting animated PNG to a static target (JPG, PNG) keeps only the first frame.
Can I convert PNG to ICO on my phone?
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Yes. The converter is mobile-responsive and processes images server-side, so you can convert PNG to ICO from any iPhone or Android device without using local storage.