arp

.arpArcSoft PhotoImpact Picture

ArcSoft · 1995

Developer
ArcSoft
Category
Images
MIME Type
image/x-arcsoft-photoimpact
First Released
1995
Open Format
No
File Signature
Not readily available or standardized
At a Glance
.arp
ArcSoft PhotoImpact Picture

An .arp file is a project file created by ArcSoft PhotoImpact, containing layers and editing information for an image.

Reviewed on July 1, 2026
Compression
Varies
Transparency
Yes
Editability
High
Best for
Layered image projects

Key Features

  • Preserves layers and editing history.
  • Supports non-destructive editing workflows.
  • Includes effects, masks, and text elements.
  • Proprietary format for ArcSoft PhotoImpact projects.

Best For

  • Continuing complex image edits in ArcSoft PhotoImpact.
  • Preserving all editable elements of a graphic design.
  • Work-in-progress files for PhotoImpact users.

Less Ideal For

  • Sharing images online or with other software.
  • Creating final web-ready graphics.
  • Presenting images in standard viewers or editors.
  • Archiving images for long-term, universal compatibility.

Common Use Cases

  • Saving ongoing image editing projects in ArcSoft PhotoImpact.
  • Archiving layered artwork created within PhotoImpact.
  • Re-editing graphics with specific effects and text.

How to Open It

  1. The primary way to open .arp files is with ArcSoft PhotoImpact software. If you don't have it installed, you may need to find a compatible version, though it's no longer actively developed.
  2. Consider if you can export the image to a more common format (like JPG or PNG) from within PhotoImpact if you only need the final image.
  3. If ArcSoft PhotoImpact is unavailable, other image editors will likely not be able to open or interpret these files directly.

What is a .arp file?

The .arp file extension is primarily associated with ArcSoft PhotoImpact, a now-discontinued but once popular image editing software. These files typically contain project data rather than a flattened image, meaning they can store layers, masks, effects, and other editing information. This allows users to return to a project and continue editing without losing their work. While not a standard image format for sharing or web use, it served as a robust working file for PhotoImpact users.

Programs That Open .arp Files

PlatformProgram
WindowsArcSoft PhotoImpactPaidOfficial

How to Convert .arp Files

FormatMethod
.PNGArcSoft PhotoImpact
.JPGArcSoft PhotoImpact

Common Problems with .arp Files

⚠️ Cannot open .arp file because ArcSoft PhotoImpact is not installed or no longer available.
Seek out a legacy installation of ArcSoft PhotoImpact, or accept that the file may be inaccessible if you cannot find compatible software.
⚠️ Viewing .arp file directly as an image fails.
.arp files are project files, not flattened images. They require specialized software to render. Export to a common image format first.

Frequently Asked Questions

Can I open .arp files on any image editor?

No, .arp files are proprietary to ArcSoft PhotoImpact and generally cannot be opened by other standard image editing software.

What is the difference between an .arp file and a .jpg file?

A .arp file contains all the layers and editing information, allowing further modifications. A .jpg file is a flattened, final image, optimized for sharing and viewing, and loses all layer data.

Is ArcSoft PhotoImpact still supported?

No, ArcSoft PhotoImpact has been discontinued and is no longer officially supported or updated by ArcSoft.

Technical Details

ARP files are proprietary to ArcSoft PhotoImpact and store a complex data structure that includes multiple layers, adjustment settings, text objects, and other editable elements. They are not simple raster or vector graphics but rather a snapshot of the editing session. The file format is binary and is not designed for direct viewing or sharing, requiring PhotoImpact or compatible software to interpret and render the image.

Did You Know?

ArcSoft PhotoImpact was a competitor to Adobe Photoshop Elements and Corel PaintShop Pro.
The .arp format was designed to encapsulate the rich editing capabilities of PhotoImpact, similar to how .psd serves Photoshop.

Security Information

As a proprietary project file from discontinued software, .arp files generally pose no unique security risks beyond those of any other file type if opened with the intended application. However, sourcing and running very old software could introduce compatibility or security vulnerabilities depending on the system.

Related Extensions