Kukureku PDF Guides
Practical guides for private PDF work
Learn how common PDF tasks work in the browser, what to expect from the result, and where local processing has real limitations.
How private PDF tools can work without uploads
Understand browser-local processing, how to verify it yourself, and the trade-offs compared with server-based conversion.
Read guide →How to compress a PDF without uploading it
Learn what PDF compression can reduce, why results vary, and how to choose a sensible optimization level.
Read guide →How to add a watermark to a PDF without uploading it
Use text or image watermarks for drafts, ownership, and document status while keeping the PDF on your device.
Read guide →How to convert Word to PDF without uploading the document
See what browser-based DOCX conversion preserves, where layouts can differ, and how to review the result before sharing.
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