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OrbitexPDF

PDF のガイド と使い方

Edit any PDF onlinewithout uploading it

Change text in its own font, sign a page and type on a form, right in your browser - no detour through Word, and your file never leaves your computer.

保護とセキュリティ のガイド

PDF にパスワードをかける方法と、ここにアップロードしたファイルに何が起きるのか。

A document page with a black bar across one line and a warning triangle beside it
保護とセキュリティ

Black boxes hide nothing

Blacking Out Text in a PDF Is Not Redaction

A black rectangle drawn over an account number hides it from your eyes and from nobody else. The text is still in the file, still copyable, still searchable. Here is what is really happening, and what actually removes the words.

11 min readガイドを読む
A magnifying glass held over a PDF document, with one line of the page picked out in red
保護とセキュリティ

Is this PDF safe?

Is This PDF Safe to Open? How to Check Before You Click

An invoice from a supplier you half recognise, or a delivery notice for a parcel you are not sure you ordered. Here is what a PDF can and cannot do to your machine, and the short check to run before you open one.

9 min readガイドを読む
A PDF page beside a closed red padlock
保護とセキュリティ

Password protect a PDF

How to Password Protect a PDF (and What the Password Actually Protects)

A password on a PDF can mean two very different things, and only one of them stops anyone reading the file. Here is how AES-256 encryption works, how to apply it, how to choose a password that holds, and how to get it to the reader without undoing the point.

9 min readガイドを読む
A shield with a tick between two PDF pages, illustrating how uploaded files are handled
保護とセキュリティ

How your files are handled

How Orbitex handles your files

A plain-language walk through what happens to a document between the moment you drop it and the moment it is gone.

2 min readガイドを読む

すべてのツールにガイドを

各ツールが何をするのか、いつ使うのか、そして何かをアップロードする前に知っておきたい設定。