UsePDF.io
Fill and Sign

Fill and Sign PDF

Fill PDF forms online, add signatures, initials, text, dates, and checkboxes, then download the completed file with UsePDF.io.

Ready for a document

Upload a PDF or Office file to start placing signatures and fields.

Upload a PDF to fill and sign

Open forms, place signatures, initials, dates, text, and checkboxes in a signer-friendly workspace.

or drag files here

Supports PDF and Office files that can be prepared as PDF first.

Supported formats

PDFDOCDOCXXLSXLSXPPTPPTX

Flexible signer setup

Prepare documents for yourself, for other people, or for both in one flow.

Create or upload signatures

Draw, type, or upload a signature and reuse it across the document.

Field-aware workflow

Existing form fields are highlighted so you can complete them faster when the PDF exposes them.

Files processed temporarilyNot stored permanentlyOn-device when possible

What this tool does

Fill and Sign PDF gives you a browser workspace for completing forms, placing signatures, and preparing documents for sending.

Upload a PDF, detect existing form fields when available, add your own text, dates, initials, and signatures, then export a finished file. It works well for contracts, approvals, onboarding packets, and document workflows that need fast completion.

PDF files open directly. Supported Office files are first converted into PDF so you can place signer fields in the same workspace. UsePDF.io keeps the workflow simple: upload your file, review the result when preview is available, and download the output when processing is complete.

How to use it

  1. 1Upload your document.
  2. 2Add signers, fields, and signatures.
  3. 3Export the completed PDF.

Supported formats

PDFDOCDOCXXLSXLSXPPTPPTX

File privacy: Files are processed only for the action you request. We avoid using document contents for analytics, and you should only upload files you have permission to process.

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Frequently Asked Questions

Is Fill and Sign PDF free to use?

Yes. You can use Fill and Sign PDF on UsePDF.io for free with no sign-up required for the basic workflow.

Do I need to create an account?

No. You can start in the browser without creating an account. Some higher-volume limits may require signing in later.

Are my files secure?

Files are processed only to complete your requested task and are not used for analytics, resale, or training. Avoid uploading documents you are not authorized to process.

Which file formats are supported?

Fill and Sign PDF supports PDF, DOC, DOCX, XLS, XLSX, PPT, and PPTX. The page also shows accepted upload types before you choose a file.