FreNiMi Guides
Understand the company.
Choose the right product.
Plain-language answers about FreNiMi, its products, privacy, and the decisions that come before choosing a digital tool.
What is FreNiMi?
Understand the parent company, explore its family of digital products, and learn how to evaluate the right product for your needs.
Read the company guideAre browser-based file tools private?
Learn the difference between local processing and uploading, plus a practical way to verify what a tool is doing.
Read the privacy guideWhat PDF metadata can reveal
Understand author fields, XMP data, visible content, attachments, and what a metadata cleaner can—and cannot—remove.
Read the metadata guideJPG, PNG, or WebP?
Choose a format based on photographs, transparency, screenshots, compatibility, and file size instead of guesswork.
Read the format guideHow to merge PDF files
What actually happens when you combine PDFs privately, how page order works, and why encrypted files need unlocking first.
Read the merge guideHow PDF compression works
What compression actually optimizes, why image-heavy PDFs shrink less, and how to set honest expectations.
Read the compression guideHow to crop PDF margins
Trim white space and scanner borders, choose safe measurements, and understand why cropping is not redaction.
Read the cropping guidePDF passwords, explained
How AES-256 PDF encryption works, what it protects against, and what it doesn't.
Read the password guideA complete private PDF workflow
Inspect the source, order editing steps correctly, verify the downloaded result, and share the final file more safely.
Read the workflow guideReduce image size without ruining quality
Choose dimensions, format, quality, transparency, and metadata based on the image's real destination.
Read the image guideGenerate and store passwords safely
Use standards-based guidance for length, randomness, unique credentials, password managers, and MFA.
Read the password security guideWhat to check before scanning a QR code
Preview destinations, recognize replacement codes and phishing, and avoid exposing secrets in shared codes.
Read the QR safety guideHow FreNiMi tests and writes
See how we verify tool behavior, support privacy claims, choose sources, disclose limitations, and correct errors.
Read our editorial standards