PBM to CUR Converter

Reliable online PBM to CUR format transformation

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Data Protection Built In

Source PBM files and resulting CUR files are both deleted from servers — uploads immediately, outputs within 24 hours.

Batch Conversion

Convert multiple PBM files to CUR at once. Upload a batch and each file is processed independently — efficient and time-saving.

Server-Side Conversion

PBM to CUR conversion happens in the cloud. Your computer or phone is not burdened by any processing work whatsoever.

How to convert PBM to CUR

1

Select files from Computer, Google Drive, Dropbox, URL or by dragging it on the page.

2

Choose cur or any other format you need as a result (more than 200 formats supported)

3

Let the file convert and you can download your cur file right afterwards

About formats

PBM (Portable Bitmap) is the monochrome (black and white, 1-bit) member of the Netpbm family of image formats, created by Jef Poskanzer in 1988 as part of the Pbmplus toolkit for Unix systems. The format exists in two variants: ASCII (magic number P1), where each pixel is represented as a text character '0' (white) or '1' (black) separated by whitespace, and binary (magic number P4), where pixels are packed eight per byte for compact storage. Both variants begin with a plain-text header specifying the magic number, image width and height, and optional comments. PBM was designed as the simplest possible image format — a bridge format for converting between the many incompatible raster formats that proliferated across different Unix systems and applications during the 1980s. The Netpbm philosophy was to convert any source format to PBM/PGM/PPM as an intermediate step, then convert to the target format, using the portable formats as a universal exchange layer. One advantage is extreme simplicity — the ASCII variant can be literally typed by hand in a text editor, and both variants are trivial to parse and generate in any programming language without external libraries. The format's role as a universal image processing intermediate is another strength: hundreds of Netpbm command-line tools accept PBM input, enabling complex image manipulation pipelines through Unix pipes. PBM remains used in computer science education, OCR preprocessing, and any context where a dead-simple monochrome image representation is needed.
Developer: Jef Poskanzer
Initial release: 1988
CUR is the cursor image format for Microsoft Windows), structurally nearly identical to the ICO (icon) format but with the addition of a hotspot coordinate that identifies the precise pixel position where mouse clicks register. Introduced with early Windows versions, CUR files use the same container structure as ICO: a directory header listing one or more image entries, each specifying dimensions and color depth, followed by the pixel data for each variant. Like ICO, a single CUR file can contain multiple images at different sizes and color depths, allowing Windows to select the most appropriate cursor image for the current display resolution and color settings. Image data within CUR files can be stored as BMP pixel arrays (for legacy compatibility) or as embedded PNG images (supported since Windows Vista) for alpha-blended cursors with smooth edges. The hotspot coordinate — the distinguishing feature separating CUR from ICO — is stored as an X,Y pair in the directory entry header, typically pointing to the tip of an arrow or the center of a crosshair. One advantage is multi-resolution packaging: a single CUR file provides appropriate cursor imagery across display densities from standard DPI to high-DPI screens. Native Windows integration is another strength — CUR files are loaded directly by the operating system for mouse cursor) display without any third-party software. CUR files are used by application developers and theme creators to customize the pointing experience across Windows environments.
Developer: Microsoft
Initial release: 1987

Frequently Asked Questions

Why convert PBM to CUR?

Switch to CUR for custom Windows cursors — it works with more applications and platforms than PBM typically does.

What programs open CUR files?

For CUR files, try Windows OS, cursor editors, IrfanView. Cross-platform support means you can view them on any operating system.

Can I convert multiple PBM files to CUR at once?

Batch conversion is supported. Upload multiple PBM files and the converter processes them all to CUR together.

Is the PBM to CUR conversion instant?

Processing is fast — most PBM files convert to CUR within a few seconds, depending on image dimensions and server load.

Do I need to create an account to convert?

No sign-up necessary. The converter works without an account for regular PBM to CUR conversions.

Will I lose image quality converting PBM to CUR?

The conversion preserves the original quality of your PBM file. Any inherent quality limits in PBM carry over, but nothing additional is lost.

PBM to CUR Quality Rating

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