Private & Secure
Universal File Converter
Fast, secure, and private file transformations in your browser.
Convert E-Books to PDF
Select an .epub file to transform it into a readable PDF document.
All conversions are processed locally or via secure encrypted streams. Files are never stored on our servers.
Why & How to Use This Converter
Why This Tool Matters
File format compatibility shouldn't be a barrier to your workflow. This universal converter eliminates format friction by giving you three essential transformations in one clean interface:
- EPUB to PDF: Convert e-books into universally readable PDFs that work on any device, printer, or sharing platform—no e-reader required.
- HEIC to JPG: Transform iPhone photos into the industry-standard JPG format that every website, social media platform, and editing software accepts natively.
- PPT to PDF: Lock your presentation formatting and share it confidently, knowing your slides will look exactly the same on any screen.
All processing happens in your browser—your files never leave your device, ensuring complete privacy and security.
Who Is This For?
- iPhone users who need to share photos with Android users, upload to websites, or edit in software that doesn't support HEIC.
- Students and researchers who download e-books in EPUB format but need PDFs for annotation, printing, or citation management.
- Business professionals who create presentations in PowerPoint but must distribute them as polished, uneditable PDF documents.
- Anyone who values privacy and doesn't want to upload sensitive documents to random online converter websites that may store or scan your files.
How to Use It (Step-by-Step)
1 Select your converter tab. Click the tab at the top that matches your conversion need: EPUB to PDF, HEIC to JPG, or PPT to PDF. The active tab is highlighted in dark.
2 Upload your file. Click the "Select File" button and choose the file from your device. For HEIC images, conversion begins automatically once a file is selected.
3 Wait for processing. A status message will appear showing conversion progress. HEIC to JPG conversions happen entirely in your browser and complete in seconds.
4 Download your converted file. For HEIC conversions, a preview appears with a green "Download JPG" button. For EPUB and PPT, the converted PDF will be ready for download once processing completes.
Pro Tip: The HEIC to JPG converter works completely offline in your browser—you can disconnect from the internet after loading the page and it will still work. This is perfect for converting sensitive photos without any data leaving your device. For EPUB and large PPT files, a stable internet connection is required for optimal processing.
Troubleshooting & FAQ
Why isn't my EPUB file converting to PDF?
EPUB to PDF conversion is more complex than image conversion and may require server-side processing for large or complex e-books. If you see a "Server-side bridge required" message, the file has been received but needs backend processing. For the best results, ensure your EPUB file is under 50MB and is not DRM-protected. DRM-locked e-books (like those from some paid stores) cannot be converted by any tool.
My HEIC photo won't convert. What could be wrong?
The HEIC converter uses the heic2any library running entirely in your browser. First, verify the file extension is actually .heic (not .heif or .hevc). If the file is very large (over 30MB), the conversion may time out—try a smaller image. Also ensure your browser is up to date, as the converter relies on modern JavaScript Canvas API support. If you see an error message, try a different HEIC image to isolate whether it's a file-specific issue.
Will my PowerPoint formatting be preserved in the PDF?
Yes—that's one of the primary benefits of converting PPT to PDF. Fonts, colors, images, charts, and slide layouts are locked into place exactly as they appear in your presentation. This prevents recipients from accidentally shifting elements when opening the file on a different device or software version. However, animations, transitions, and embedded video/audio will not play in the PDF format, as PDF is a static document format.
Are my files really private and secure?
Yes. The HEIC to JPG converter runs entirely client-side—the image never leaves your browser. For EPUB and PPT conversions, files are transmitted via encrypted streams for processing and are not permanently stored on any server. Unlike free online converter websites that may scan, store, or sell your document data, this tool is designed with privacy as a core principle. No account creation is required, and no file retention occurs after your session ends.
What are the file size limits?
For HEIC to JPG conversion, files up to approximately 30-40MB work reliably in most modern browsers. For EPUB and PPT conversions, files up to 50MB are generally well-handled. If your file exceeds these limits, you may experience slower processing or timeout errors. In that case, consider compressing the file first (especially for presentations with many high-resolution images) or splitting large documents into smaller sections.
Does this converter work on mobile devices?
Yes, the entire tool is fully responsive and mobile-friendly. You can convert HEIC photos directly from your iPhone's photo gallery, upload EPUB files from your phone's storage, or convert presentations on a tablet. The tab interface stacks neatly on smaller screens, and all buttons remain touch-friendly. The HEIC converter is particularly useful on mobile since it processes iPhone photos right on the device without any upload delay.
Can I convert multiple files at once?
Currently, the converter processes one file at a time per conversion type. This ensures quality and prevents browser memory overload. If you have multiple HEIC images to convert, simply repeat the process for each—the conversion is fast enough that batch processing is rarely a bottleneck. For bulk EPUB or PPT conversions, process them sequentially for the most reliable results.
Which browsers are supported?
The converter works on all modern browsers: Chrome (v90+), Safari (v14+), Firefox (v88+), and Edge (v90+). The HEIC converter specifically requires good Canvas API support, which all these browsers provide. If you're using an older browser version, you may experience limited functionality—updating to the latest version is recommended for the best experience.
Super fast loading speed and very handy utilities. The PDF converter and QR code generator worked perfectly for my team's daily tasks.
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