Question 1

How to convert PEF to ICO using this tool?

Accepted Answer

Click the upload button and select your Pentax PEF raw files (you can upload multiple for batch conversion). Before converting, choose the icon sizes you need (16×16, 24×24, 32×32, etc.) and set the transparency mode — either use an existing alpha channel, remove the background, or leave it opaque. Then click “Convert”, wait a few seconds for the raw processing and resize, and download your ICO file. The tool handles the PEF demosaicing and color-profile conversion automatically.

Question 2

Why should I convert PEF to ICO instead of using the RAW file directly on Windows?

Accepted Answer

PEF is a proprietary RAW format from Pentax that stores minimally processed sensor data. Windows and most applications cannot render or display RAW files as icons — they require a bitmap-based image with pixel dimensions like 16×16 and an alpha channel. ICO is the native icon container for Windows, supports multiple resolutions in a single file, and allows for true transparency (RGBA). Converting PEF to ICO lets you create custom, high-quality icons from your own Pentax photos for folders, shortcuts, applications, or web favicons, while the original RAW remains untouched.

Question 3

What technical attributes are preserved in the PEF to ICO conversion?

Accepted Answer

The conversion first decodes the PEF sensor data, applies demosaicing, white balance, and the embedded ICC color profile to produce a high-bit-depth intermediate bitmap. This bitmap is then downsampled to the requested ICO sizes (up to 256×256) using Lanczos resampling to retain sharpness and smooth edges. The ICO output uses 32-bit BGRA format, so the alpha channel (transparency) is fully preserved if present; if the PEF has no alpha layer (RAWs generally don't), you can add transparency by background removal or by using an existing mask. However, metadata like EXIF, camera settings, and GPS tags are not embedded in ICO, and the high dynamic range of the RAW is tone-mapped into the 8-bit-per-channel ICO color space.

Feature / Attribute	PEF	ICO
Primary Format Name	PEF File Format	Windows Icon Format
Primary File Category	Data & Media File	Icon Graphics
Standard MIME Type	application/pef	image/x-icon
Core Developer / Standard	Standard Organization	Microsoft
Optimal Use Case	Converting and managing PEF files across devices and applications.	Website favicons, desktop shortcut icons, and application branding.

PEF-TO-ICO

Conversion Settings

🛡️ Zero Data Storage Guarantee

PEF

ICO

Why Convert PEF to ICO?

● PEF Key Advantages:

● ICO Key Advantages:

PEF vs ICO Comparison Table

Frequently Asked Questions (PEF to ICO)

100% Secure & Automatic File Purging

How to Convert PEF-TO-ICO

Related IMAGE Converters (190)

3FR to ICO

AI to ICO

ARW to ICO

AVIF to ICO

AVIF to PEF

BMP to ICO

BMP to PEF

CBR to ICO

CBZ to ICO

CR2 to ICO

CR3 to ICO

CRW to ICO

CUR to ICO

DCR to ICO

DCS to ICO

DDS to ICO

DDS to PEF

DIB to ICO

DJV to ICO

DJVU to ICO

DJVU to PEF

DNG to ICO

DRF to ICO

EMZ to ICO

Explore All IMAGE Pairs & Formats

⚡ Convert from PEF to other formats: