Convert PSD to DJVU

Why Convert PSD to DJVU?

PSD files are notoriously large, often reaching hundreds of megabytes with multiple layers, smart objects, and high-resolution canvases. Converting to DJVU flattens the layer stack and applies wavelet compression, producing files that are 99% smaller while preserving the visual appearance of the flattened design for review and reference.

Design teams frequently need to share visual proofs with clients who do not have Photoshop. Converting PSD files to DJVU creates compact, viewable documents that any DJVU reader can display, without requiring expensive Adobe software licenses. The multi-page capability allows compiling entire design sets into single browsable files.

For archiving completed design projects, DJVU offers a practical middle ground between keeping massive PSD files (for potential future editing) and losing the visual record entirely. The DJVU output preserves what the design looks like while consuming minimal storage space.

Note that PSD-to-DJVU conversion flattens all layers, discarding the individual layer structure, blend modes, and editability. The conversion produces a visual snapshot of the composite output. Always retain original PSD files for editing purposes.

Key Benefits of Converting PSD to DJVU:

• 99% Size Reduction: 200 MB PSD files become 1-2 MB DJVU documents
• No Photoshop Required: Recipients view designs in free DJVU readers
• Portfolio Bundling: Compile design sets into navigable documents
• Client Proofing: Share compact visual proofs via email
• Design Archival: Lightweight visual records of completed projects
• Text Preservation: Typography in designs benefits from JB2 compression
• Fast Distribution: Email-friendly file sizes for review cycles

Practical Examples

Example 1: Design Portfolio for Job Applications

Scenario: A graphic designer needs to compile 25 PSD design projects into a portable portfolio document for sending to potential employers.

Source: portfolio_projects/*.psd (25 files, 150-400 MB each, ~6 GB)
Target: portfolio_2026.djvu (25 pages, ~18 MB)

Workflow:
1. Upload PSD design files
2. Each flattened to composite view
3. Wavelet compression applied per page
4. Bundled into navigable portfolio document
5. Shared as single email attachment

Result: Complete portfolio in 18 MB instead of 6 GB,
viewable on any platform, with page thumbnails
for quick design review.

Example 2: Client Design Review Package

Scenario: A web design agency sends PSD mockups to clients for approval but clients cannot open PSD files and find PDF exports too large.

Source: homepage_v3.psd (3840x2160, 280 MB, 45 layers)
Target: homepage_v3_proof.djvu (3840x2160, ~1.4 MB)

Benefits:
- Client opens in free WinDjView or SumatraPDF
- Full-resolution design viewable with zoom
- 99.5% smaller than original PSD
- Typography and UI text remain sharp
- Fast download even on slow connections

Result: Client reviews full-resolution mockup without
Photoshop, provides feedback on actual design quality.

Example 3: Completed Project Archival

Scenario: A design studio archives completed client projects and needs compact visual records alongside the full PSD source files stored on cold storage.

Source: brand_redesign_project/*.psd (80 files, ~15 GB)
Target: brand_redesign_archive.djvu (80 pages, ~45 MB)

Processing:
1. Upload all project PSD files
2. Each design flattened and compressed
3. Bundled into chronological project document
4. Stored on fast SSD for quick reference
5. Original PSDs archived to cold storage

Result: Quick-reference project archive accessible
in seconds, while full editables remain on
archival storage for potential revision.

Frequently Asked Questions (FAQ)

Q: Are PSD layers preserved in DJVU?

A: No. The conversion flattens all layers into a single composite image. Layer structure, blend modes, masks, and editability are lost. DJVU is a viewing/archival format, not an editing format. Always keep original PSD files for editing.

Q: What happens to PSD text layers?

A: Text layers are rasterized as part of the flattened composite. The text remains visually sharp in the DJVU output due to JB2 foreground compression, but it is no longer editable as vector text. DJVU's OCR layer can make the text searchable if applied.

Q: Will CMYK colors be preserved?

A: DJVU uses RGB color space only. CMYK PSD files are converted to RGB during the flattening process. This may cause slight color shifts, particularly in rich blacks and saturated colors. For print-critical color accuracy, use PDF/X instead.

Q: Can I convert PSB (Large Document) files?

A: PSB files exceeding 2 GB or 30,000 pixels may encounter processing limits. Standard PSD files up to the 2 GB / 30,000 pixel limit are fully supported.

Q: How does DJVU compare to PDF for sharing PSD designs?

A: DJVU produces files 3-8x smaller than PDF for image-heavy content at comparable visual quality. PDF has wider software support and is more familiar to clients. DJVU excels when file size is critical, such as email attachments or mobile viewing.

Q: Is the flattened resolution preserved in DJVU?

A: Yes. The full pixel resolution of the PSD composite is maintained in the DJVU output. A 4000x3000 PSD produces a 4000x3000 DJVU page. The wavelet compression reduces file size without reducing pixel dimensions.

Q: Can I convert DJVU back to PSD?

A: You can extract a raster image from DJVU and open it in Photoshop, but the original layer structure cannot be recovered. The extracted image is a flat raster, equivalent to opening a flattened JPEG in Photoshop.

Q: What about PSD files with transparent backgrounds?

A: Transparent areas in PSD are rendered against a white background during flattening. DJVU does not support true alpha transparency for the image content. If the design has a transparent canvas, the DJVU will show white where transparency existed.