Question 1

What is PDF Hub?

Accepted Answer

PDF Hub is a free online suite of PDF and developer tools. You can merge, split, compress, convert, edit, sign, and manage PDFs directly in your browser. We also offer a full E-Sign suite for sending documents to others for signature.

Question 2

Do I need an account to use PDF Hub?

Accepted Answer

Currently, PDF Hub requires an account and admin approval to access the tools. Once approved, all PDF tools are free to use. The E-Sign feature requires a registered account for sending documents, but recipients can sign without an account.

Question 3

Is my data safe?

Accepted Answer

Yes. Most PDF tools process files entirely in your browser, meaning your files never leave your device. For E-Sign, documents are stored securely in Firebase Storage with encryption at rest, and signing links use HMAC-SHA256 tokens for security.

Question 4

How do I merge multiple PDFs?

Accepted Answer

Go to the Merge PDFs tool from the sidebar. Drag and drop or select multiple PDF files, reorder them as needed, then click Merge to combine them into a single PDF.

Question 5

How does E-Sign work?

Accepted Answer

Upload a PDF, place signature fields on the document, and either self-sign or add other signers by email. Each signer receives a unique secure link to sign their assigned fields. Once all signers complete, you can download the fully signed document.

Question 6

What is the maximum file size for E-Sign?

Accepted Answer

The maximum PDF file size for E-Sign is 10 MB. If your file is larger, try using the Compress PDF tool first to reduce the file size.

Question 7

Can signers sign without creating an account?

Accepted Answer

Yes. External signers receive a secure link via email and can sign directly without needing a PDF Hub account.

Question 8

Is E-Sign legally binding?

Accepted Answer

PDF Hub E-Sign creates a complete audit trail including timestamps, IP addresses, and signer details for each action. Electronic signatures are generally recognized under laws like ESIGN and UETA.

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