Switch from DigiSigner to pdfFiller for a Modify Digital Signature Document Solution For Free
Use pdfFiller instead of DigiSigner to fill out forms and edit PDF documents online. Get a comprehensive PDF toolkit at the most competitive price.
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Switch from DigiSigner to pdfFiller in 4 simple steps
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Sign up for free using your email, Google, or Facebook account.
2
Upload a PDF from your device or cloud storage, check the online library for the form you need, or create a document from scratch.
3
Edit, annotate, redact, or eSign your PDF online in seconds.
4
Share your document, download it in your preferred format, or save it as a template.
Experience effortless PDF management with the best alternative to DigiSigner

Create and edit PDFs
Instantly customize your PDFs any way you want, or start fresh with a new document.

Fill out PDF forms
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Build fillable documents
Add fillable fields to your PDFs and share your forms with ease to collect accurate data.

Save reusable templates
Reclaim working hours by generating new documents with reusable pre-made templates.

Get eSignatures done
Forget about printing and mailing documents for signature. Sign your PDFs or request signatures in a few clicks.

Convert files
Say goodbye to unreliable third-party file converters. Save your files in various formats right in pdfFiller.

Securely store documents
Keep all your documents in one place without exposing your sensitive data.

Organize your PDFs
Merge, split, and rearrange the pages of your PDFs in any order.
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For pdfFiller’s FAQs
Below is a list of the most common customer questions. If you can’t find an answer to your question, please don’t hesitate to reach out to us.
What if I have more questions?
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Can I edit a digitally signed PDF?
If you received a PDF digitally signed by others, you can sign it, but can't edit it. While signing a PDF, if the signer chooses to lock the document after signing, the document becomes read-only for everyone, including the signer.
How do I convert a PDF to a fillable form?
Upload PDFs to Make it Writable. Upload the PDF files you want to make it writable to PDF element.
Select the Writable File Format. Click on the “Convert” tab, you will see there are many options for conversion.
Convert PDF to Writable File.
Can digital signature be edited?
No. However, you can add annotations (comments) to a digitally signed document. To do so, you need a PDF editor.
Can a digital signature be modified?
No. However, you can add annotations (comments) to a digitally signed document. To do so, you need a PDF editor.
Can digital signature be tampered?
A common question people have is “Can my digital signature be forged, misused or copied?” The reality is, wet signatures can easily be forged and tampered with. An electronic signature has many layers of security and authentication built in, along with court-admissible proof of transaction.
What makes a digital signature invalid?
If a digital signature isn't valid, there can be many causes. For example, the sender's certificate may have expired, it may have been revoked by the certificate authority (CA), or the server that verifies the certificate might be unavailable. Notify the message sender of the problem.
Can digital signature be changed?
Change your e-signature in new Acrobat To add a replacement signature to the document, select Add Signature. Type, draw, or select a new signature image to replace the existing one. Then select Apply.
Can I edit a digitally signed PDF?
Once a PDF has been digitally signed, it is usually impossible to edit without compromising the signature. And it's precisely the purpose of an electronic signature not to be able to tamper with a signed document! However, in some cases, it is possible to amend the file in a way that keeps the original signature valid.
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