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Local File Tools · runs locally

Private Local PDF Viewer

Open a signature-verified PDF in a sandboxed browser preview without uploading the document or creating a server-side copy.

Ready. Your working data stays in this browser.

Files and capture streams stay on this device. Processing uses browser APIs only; nothing is uploaded to YTSave, the media API or a proxy.

Why this tool is useful

Inspect a PDF on a shared or privacy-sensitive device without submitting its contents to an online viewer.

How it works

The browser checks the PDF signature and 200 MiB limit, creates a temporary same-tab Blob URL and displays it inside a sandboxed frame.

Practical example

Choose a local report, verify its name and size, inspect it in the embedded viewer and close the page to revoke the temporary URL.

Validation

The calculation is deterministic and explains validation errors instead of silently changing invalid input.

Privacy boundary

Input and output remain in this tab. Copy and download happen through browser APIs without a server upload.

Result passport

Every run reports its tool mode, timestamp and input/output size so transformed data can be audited.