I discovered converter.app whilst researching my ancestry. I came across a djvu file that I couldn't read. converter.app came up in my search and I was immediately able to read the document. It was so easy to convert. I now have a readable copy of a much treasured document. Thank you.
DjVu to PDF
Convert DjVu to PDF online — free, secure, and fully searchable.
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Free: Unlimited free conversions. No installation required.
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Private: Files auto-deleted after 2 hours.
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Smart: Retains original OCR and searchable text.
100% Free & Unlimited
Converter App lets you convert DjVu to PDF completely free of charge. There are no hidden fees, no paywalls, and no account registration required. You can convert as many files as you like, with no limits on file size or number of conversions.
No Installation Required
You can convert DjVu to PDF directly using your browser. No software installation or obscure plugins are required. Your files are processed securely and automatically in the cloud, allowing you to download a ready-to-use PDF in seconds on any smartphone, tablet, or computer.
Private by Design
We strictly adhere to a "Process & Purge" policy. Your files are transferred via enterprise-grade SSL encryption and processed in secure isolation. We do not view, copy, or mine your content. Once processing is complete, an automated system permanently deletes your files from our servers after 2 hours.
Universal Compatibility
DjVu offers excellent compression but remains a “digital island,” typically requiring dedicated viewers like WinDjView or DjView. PDF is the global standard. By converting DjVu to PDF, your documents become instantly accessible on all smartphones, tablets, and computers—no extra viewers or conversion apps needed.
Retains Searchable Text (OCR)
Unlike generic DjVu to PDF converters that ignore embedded metadata and flatten pages into bitmaps, our engine detects the existing OCR text layer in the source DjVu and migrates it directly into the PDF container. As a result, searchable text is preserved 1:1, enabling copy, search, and text selection without re-running OCR.
Optimized File Size
We avoid blindly decoding DjVu pages into raw images, a common method that drastically inflates file size. Instead, our engine analyzes each page individually to apply the most efficient encoding: JBIG2 for black-and-white content and adaptive compression for color. The result is a compact PDF with high visual fidelity and no bloat.
User reviews
What our users say about Converter App
From students to professionals, people use our converter to make DjVu files readable on any device. Don't just take our word for it:
4.9
Based on the 176 reviews
Collected after conversion
Measured on our servers
What to expect when converting DJVU to PDF
Real numbers from every conversion on this tool since 24 October 2026. Nothing here is estimated: we record how long each job took and how large the files were. File names and contents are never stored.
9.4 s
Typical processing time
for a 7.0 MB file (median)
733
Conversions
since 24 October 2026
433 MB
Largest file converted
since 24 October 2026
+147%
Output size
about 147% larger than the input
Expected time by file size
How long conversions take
share of all conversions
- under 1 s1%
- 1–10 s51%
- 10–60 s47%
- 1–5 min1%
- over 5 min0%
Times are server processing only, measured after the upload finished; upload and download are not included. Large files take longer, but the limit is the same for everyone: no account, no queue priority to buy. Updated 2026-11-03
Frequently Asked Questions
How do I convert DjVu to PDF?
Upload: Drag & drop your DjVu file into the toolbox above.
Wait: Our engine automatically extracts the text layer and optimizes the images.
Download: In moments, your searchable PDF is ready to download.
How do I open a DjVu file?
The fastest way is to convert the file to PDF using our tool above. DjVu files are specialized documents that most devices cannot open, but converting to PDF gives you immediate access without installing new software.
If you prefer to download a dedicated viewer, you can use these industry-standard tools:
- Desktop: WinDjView (Windows) or DjView (macOS).
- Mobile: ReadEra (Android) or DjVu Reader (iOS).
Why is this DjVu to PDF converter better than others?
DjVu files actually contain a hidden text layer. Most other converters skip this and just take a "screenshot" of each page, creating blurry files that are impossible to search. We don't. Instead we convert DjVu to PDF using Multi-Layer Extraction to surgically separate the text from the background. This preserves the original sharpness and ensures your result is fully searchable and copy-pasteable.
Will my PDF be text-searchable?
Yes, provided the original DjVu contains a text layer. We transfer the native data structure 1:1.
Note: If the original was a flat scan with no embedded OCR, the PDF will remain a flat scan.
Note: If the original was a flat scan with no embedded OCR, the PDF will remain a flat scan.
Why is the resulting PDF larger than the DjVu?
Since DjVu is inherently more efficient than PDF, a file size increase is unavoidable. However, we avoid the massive bloat common in competitor tools. Instead of "one-size-fits-all" settings, we dynamically adjust compression parameters based on the file you submit. We calculate the unique "sweet spot" for each document to balance visual quality and file size, utilizing JBIG2 for black-and-white content to keep files manageable.
Will images from the original DjVu look blurry in the PDF?
Not at all. We prioritize image fidelity. When performing a DjVu to PDF conversion, our engine is specifically tuned to preserve the sharpness of your original file. This ensures that even fine details—such as charts, mathematical diagrams, and small footnotes—remain crisp and readable in the final document.
How do you handle data privacy?
We operate on a Zero-Retention architecture. Transfers are SSL-encrypted, processing is fully automated, and files are permanently deleted from our servers immediately after the conversion stream ends.
I was visiting djvu-pdf.com but arrived here. How are these sites related?
You are in the right place. This site is the official successor to djvu-pdf.com. We are the same team behind the original tool—which was recommended by the official DjVu website—but we have built this new platform to provide a faster, more modern experience. As always, the service remains completely free.
