How to sign an Excel spreadsheet electronically

A signed spreadsheet is a strange object until you have needed one: a rate card, a bill of quantities, a payment schedule, a stock count somebody has to attest to. Excel itself has no real signing story, so the usual route is to print it, sign the paper, and scan it back. Drop the .xlsx here instead and it is laid out on the paper size, orientation and margins the sheet was set up for, with print titles repeated and number formats intact, then signed and sealed.

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What you can do

How to sign an Excel spreadsheet electronically

  1. Drop the .xlsx in. Each sheet is paginated the way Excel would print it, using the workbook's own page setup rather than a default.
  2. Check the page breaks and the repeated header rows, which is where a printed spreadsheet usually goes wrong.
  3. Place your signature, the date, and a company stamp if the sheet needs one, on the page that needs attesting.
  4. Seal and download the signed PDF, with a hash covering every page of it.

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Frequently asked questions

Can you electronically sign an Excel file?

Not usefully inside Excel, where a signature is either a floating image anyone can delete or a certificate-based signature that breaks the moment a cell is edited. Signing the printed form of the sheet is the honest version: you are attesting to particular figures on a particular page, and sealing them so it is visible if they change.

Can I sign a .xlsx file?

Yes. Drop the .xlsx file in and each sheet is laid out the way Excel would print it, using the workbook page setup rather than a default one. You sign the page that needs signing, and download a sealed PDF of the sheets as they stood.

What happens to the formulas?

They are gone from the signed copy, deliberately. What is signed is the values as they stood, which is the point of signing a schedule. Keep the .xlsx if you need the working; the signed PDF is the record.

Can I sign only one sheet of the workbook?

Yes. Every sheet is laid out, and you choose which pages the signature and any stamp go on before sealing.

Is it free to sign a PDF online?

Yes. You can fill in and sign a PDF for free with no account, you only pay when you download a finished document ($1.50 per document pay-as-you-go, or unlimited on any paid plan). sign an Excel spreadsheet works the same way.

Is signing a PDF online secure?

Yes. Files are uploaded over 256-bit TLS, processed in your browser session, and automatically deleted after one hour. Each signature is bound to the document with a SHA-256 tamper-evident seal, so any later edit is detectable.

Are electronic signatures legally binding?

Yes, electronic signatures are legally binding for ordinary business documents in 190+ countries under the US ESIGN Act and UETA, the EU eIDAS Regulation, and equivalent laws worldwide. Courts look for intent, identity and integrity, all of which PDF Verified records.

Do I need to install anything?

No. Everything runs in your browser on desktop or mobile, no app, plugin or download required.

What PDF Verified is, and what it is not

Electronic signature law is settled in broad terms and specific in the details. The ESIGN Act, UETA, eIDAS and their equivalents recognise electronic signatures across more than 190 countries, and what decides a particular case is intent to sign plus evidence connecting the signature to the signer, which is what the audit certificate records. Certain document types carry their own formalities wherever you are: deeds, wills, some property instruments, and anything requiring a witness or a notary. Sign only what you are authorised to sign, since applying another person signature without their authority is forgery whatever tool is used.

PDF Verified is a tool for preparing, signing, stamping and checking documents. It is not a law firm, a compliance service or a forensic examiner, and nothing here is legal, financial or compliance advice. Requirements differ by country, by document type and by the party asking, so check what applies to your document before you rely on it, and take advice where the document matters. You are responsible for the documents you create, sign and send, and for having the authority to do so: signing or stamping in somebody else name, or as an organisation you do not represent, is forgery whatever tool is used. To the extent the law allows, we accept no liability for how a document made with this tool is used or relied on. The full position is in our terms of service.

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