Picture Batch TIFF to PNG
TIFF to PNG
This is the conversion to use when the scan matters. PNG is lossless, so nothing is thrown away on the way out — the pixels the TIFF decoded to are the pixels the PNG stores — and unlike TIFF, a PNG displays in every browser, email client and phone gallery there is.
Drop TIFF images here
TIFF files — or any of PNG, JPEG, WebP, AVIF, BMP, ICO, GIF or camera raw (CR2, CR3, NEF, ARW, DNG, RAF, ORF, RW2). Everything runs on this device.
Or paste an image from the clipboard.
Your images never leave this device. They are decoded and re-encoded by your own browser, and the security policy on every page blocks this site from sending them anywhere.
Lossless, keeps transparency, universally supported, larger than modern formats.
PNG is lossless — it stores every pixel exactly, so there is nothing to trade away.
Images keep their original dimensions.
Images are turned upright from their own orientation data, and left that way.
Kept. PNG stores a full alpha channel, so cut-outs and soft edges come through exactly.
Exif is carried across where both formats can hold it. Nothing currently in the queue has any.
TIFF directory tags are read for orientation but are not copied into the output. Embedded colour profiles are not applied or carried across, so wide-gamut and CMYK colours can change.
What happens to your image
File size depends mostly on the image itself.
| Property | Outcome |
|---|---|
| Transparency | Preserved: Kept. PNG stores a full alpha channel, so soft edges and cut-outs survive exactly. |
| Image quality | Preserved: Unchanged. Both formats are lossless, so every pixel comes through exactly. |
| Colour | Partly preserved: Decoded to eight-bit RGB and treated as sRGB. Embedded ICC profiles are not applied or copied, so wide-gamut and CMYK TIFFs can change colour. Use a colour-managed editor when exact colour matters. |
| Exif metadata | Not preserved: TIFF metadata is not read by this tool, so there is nothing to carry across. |
| Orientation | Preserved: Applied to the pixels, and the tag is reset to upright afterwards so nothing rotates the image a second time. |
| Multiple pages | Not preserved: Only the first page is converted. |
Lossless in, lossless out
PNG stores the eight-bit pixels produced by the TIFF decoder without lossy compression. The verification step compares the decoded PNG against those pixels, and anything but a near-exact match is treated as a failure rather than a download. TIFF samples deeper than eight bits are reduced during decoding.
Embedded ICC colour profiles are not applied or copied. CMYK and palette images are expanded to RGB, and the resulting pixels are treated as sRGB. A wide-gamut or CMYK TIFF can therefore change colour; use a colour-managed editor for accurate print colour and keep the original TIFF for archival work.
Transparency survives, if the TIFF actually has any
TIFF stores transparency through an ExtraSamples tag, and plenty of software writes a fourth channel without declaring what it is. Where the alpha is genuine it is preserved into the PNG; where the file merely has an undeclared extra channel the result is reported so you can see what happened rather than guessing.
Expect a smaller file than the TIFF, usually
PNG uses Deflate compression with per-row filtering that is well suited to photographic and scanned material, so an uncompressed TIFF typically shrinks considerably. A TIFF that was already LZW or Deflate compressed will come out roughly the same size or a little smaller.
If the result is still too large for what you need, that is a signal to use JPEG or WebP and accept some loss — not a signal that the PNG is wrong.
If something goes wrong
The PNG is larger than the TIFF.
The TIFF used JPEG compression internally, so it was already lossy and small.
What to do: Expected. Converting a lossy image to a lossless format always costs space. Use JPEG or WebP output if size matters more than fidelity.
A 16-bit scan looks flat or posterised.
The output is eight bits per channel. Sixteen-bit input is reduced on the way through.
What to do: For scientific or high-dynamic-range work where the extra bits matter, keep the TIFF. This tool is not the right one for that.
Questions
Does converting TIFF to PNG lose any quality?
PNG stores the eight-bit decoded pixels losslessly, and the result is verified against those pixels. TIFF samples deeper than eight bits are reduced to eight. Embedded ICC profiles are not applied or copied, so wide-gamut and CMYK colours can change.
Why will my TIFF not open in a browser?
No browser has ever supported TIFF, because the format is too large and variable to implement safely — it would mean shipping a dozen decompressors for a format the web does not use. That is exactly the gap this page fills.