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| Content | Preference | Format | Format Use | Notes | |
|---|---|---|---|---|---|
| Preservation | Delivery | ||||
| Still Image | Preferred (in order of preference) | TIFF uncompressed in any color space supported by TIFF | X | TIFF has been commonly used at Harvard for digital master images, and is considered an archival format suitable for long-term preservation. For more information about the TIFF format see Adobe's TIFF resources | |
| JPEG 2000 JP2 profile with lossless compression | X | X | Some projects depositing content into the DRS have chosen to use JPEG 2000 for digital master images instead of TIFF. JPEG 2000 can offer storage savings - file sizes tend to be smaller and there is an opportunity to use the same file as the preservation and use copy. While JPEG 2000 is becoming more acceptable in the library community as a preservation format, there are still advantages to TIFF over JPEG 2000 for preservation. TIFF uncompressed is a simpler format internally and has more general tool support. For more information about JPEG 2000 see the JPEG 2000 website; rendered delivered by Image Delivery Service (IDS) | ||
| TIFF with CCITT T.6 (Group 4) compression | X | ||||
| JPEG 2000 JP2 profile with lossy compression | X | X | Rendered Delivered by Image Delivery Service (IDS) | ||
| JPEG JFIF; TIFF with associated alpha component; TIFF with PackBits (lossless), LZW (lossless), Modified Huffman or Group 3 Fax compression | X | X | Rendered Delivered by Image Delivery Service (IDS) | ||
| GIF | X | X | Rendered Delivered by Image Delivery Service (IDS) | ||
| Accepted | JPEG (non-JFIF) | X | X | (suggested alternative: TIFF uncompressed or JPEG 2000 JP2 profile with lossless compression); rendered delivered by Image Delivery Service (IDS) | |
| TIFF with JPEG (lossy) compression | X | (suggested alternative: TIFF uncompressed or JPEG 2000 JP2 profile with lossless compression) | |||
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| Content | Preference | Format | Format Use | Notes | |
|---|---|---|---|---|---|
| Preservation | Delivery | ||||
| 2D CAD Drawing | Preferred | Portable Document Format (PDF) | X | X | embed fonts and linked files; rendered delivered by File Delivery Service (FDS) |
| AutoCAD Drawing (DWG) | X | X | embed fonts and linked files; rendered delivered by File Delivery Service (FDS) | ||
| Drawing Interchange Format (AutoCAD DXF) | X | X | embed fonts and linked files; rendered delivered by File Delivery Service (FDS) | ||
| 3D CAD Drawing | Preferred | Portable Document Format (PDF) | X | X | embed fonts and linked files and embedded 3D content in U3D or PRC format; rendered delivered by File Delivery Service (FDS) |
| AutoCAD Drawing (DWG) | X | X | embed fonts and linked files; rendered delivered by File Delivery Service (FDS) | ||
| Drawing Interchange Format (AutoCAD DXF) | X | X | embed fonts and linked files; rendered delivered by File Delivery Service (FDS) | ||
| Extensible 3D Graphics (X3D) | X | X | prefer xml encoding to binary or vrml; rendered delivered by File Delivery Service (FDS) | ||
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| Content | Preference | Format | Format Use | Notes | |
|---|---|---|---|---|---|
| Preservation | Delivery | ||||
| Word Processing | Preferred | Portable Document Format (PDF), PDF/A or PDF/X | X | X | Rendered Delivered by File Delivery Service (FDS) |
| Accepted | Native file format: - e.g. Microsoft Word Binary File Format (DOC), Office Open XML Document (DOCX), Rich Text Format (RTF), WordPerfect Document (WPD) with normalized "fixed" preservation derivative: - e.g. Portable Document Format (PDF) | X | X | Rendered Delivered by File Delivery Service (FDS) | |