What is the FH11 file format?
.fh11 files are native to Macromedia FreeHand 11 (also known as FreeHand MX), a professional vector-drawing tool. .fh11 files store vector graphics, which can be freely scaled without losing image quality. Images in .fh11 files are created using elements such as lines, curves, Bézier points, gradients, and colors. The file is binary and proprietary, opening with an AGD signature byte sequence (short for *Aldus Graphic Document*, tracing FreeHand's heritage at Aldus Corporation). Both RGB and CMYK color modes are supported, along with spot colors such as Pantone swatches, making .fh11 well suited for professional print production.
Uses of .fh11 files
The .fh11 format is mostly used for visual projects such as company logos, leaflets, and business cards. Its multi-page pasteboard, layer system, and master pages also made it a capable tool for brochure-style layout work requiring precise vector illustration.
Additional information
FreeHand 11 was developed by Macromedia, and was later acquired by Adobe in 2005. FreeHand MX - version 11, released in 2003 - was the final version of the software. In 2007 Adobe discontinued FreeHand entirely, directing users to .ai (Adobe Illustrator), which had long been a direct competitor. As a result, .fh11 is today an orphaned legacy format with no active development. Notably, modern Adobe Illustrator (CC and later) dropped FreeHand import support; only Illustrator CS6 and earlier can open .fh11 files natively. Practical migration paths include converting to .svg or .eps using a legacy install, or opening the file in Inkscape via its UniConvertor-based import. Users who also worked with earlier releases may encounter the closely related .fh10 format.
Security & safety
RISK: LOWA .fh11 is passive vector data - it contains no scripts or macros and cannot execute, so the file itself is safe to open. The real risk is practical: FreeHand is dead software, so beware sketchy 'FreeHand viewer'/'FH11 opener' download sites that bundle adware or PUPs - use Inkscape, a legacy Illustrator/CorelDRAW you already own, or a reputable converter instead. Keep backups of irreplaceable legacy artwork before converting.
Format details
in a nutshellPrograms that open FH11 files
Windows3 apps
CorelDRAW
Paid CorelDRAW has historically imported FreeHand files; try File > Import. Useful if you already own Corel. 
Inkscape
Open-source Try File > Import on the .fh11 - Inkscape can read FreeHand artwork via the UniConvertor backend (results vary with complexity). Free alternative to Illustrator. 
Adobe Illustrator (CS6 or earlier)
Paid Open the .fh11 in an OLDER Illustrator (up to CS6) which still imports FreeHand. Modern Illustrator CC/2024 has DROPPED FreeHand support, so this won't work in current versions. 
macOS2 apps
Adobe Illustrator (CS6 or earlier)
Paid Open the .fh11 in a legacy Illustrator that still imports FreeHand; current Illustrator versions removed the feature. 
Linux2 apps
Inkscape
Open-source File > Import the .fh11 (UniConvertor backend); the main option on Linux since FreeHand/Illustrator don't run here.
UniConvertor (CLI)
Open-source Command-line vector converter (sK1 project) that reads FreeHand and outputs SVG/PDF; the engine Inkscape uses for FreeHand import. Technical details
deep spec| File type | Proprietary binary vector drawing document |
| File signature (magic bytes) | "AGD" (hex 41 47 44) at offset 0 - Aldus Graphic Document identifier, followed by a version byte |
| Byte order | Big-endian |
| MIME type | image/x-freehand (also application/x-freehand) |
| Color model support | RGB, CMYK, spot colors (Pantone), and gradients; embedded rasters retain their own color depth |
| Encoding | Binary - proprietary FreeHand object database, not a standard container or archive format |
| Internal compression | Proprietary compression of vector object data; not a publicly documented format |
| Typical file size | 50 KB - 20 MB depending on artwork complexity and the presence of embedded images |
| Canvas size limit | Resolution-independent vectors; pasteboard up to approximately 222 × 222 inches |
| Multi-page support | Yes - multiple pages and a single shared pasteboard per document |
| Layer support | Yes - multiple named layers with independent lock, hide, and print states |
| Embedded raster images | Supported - raster images may be embedded at their native bit depth or linked externally |
| Platform support | Windows and Mac OS (classic and OS X, originally through Mac OS X 10.4 Tiger) |
| Version encoding | FreeHand version encoded in the AGD header byte; .fh11 corresponds to version 11 (FreeHand MX) |
| Superseded by | Adobe Illustrator (.ai) - Adobe discontinued FreeHand in 2007; Illustrator CS6 is the last version able to import .fh11 natively |
| Released | 2003 (FreeHand MX, the 11th and final version) |
| Latest version | FreeHand MX (v11) - the last release before discontinuation |
| Specification | en.wikipedia.org |
FH11 conversions
Community Q&A
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