Switch from Adobe Acrobat to pdfFiller for a Modify Sign Contract Solution For Free
Use pdfFiller instead of Adobe Acrobat to fill out forms and edit PDF documents online. Get a comprehensive PDF toolkit at the most competitive price.
Drop document here to upload
Up to 100 MB for PDF and up to 25 MB for DOC, DOCX, RTF, PPT, PPTX, JPEG, PNG, JFIF, XLS, XLSX or TXT
Note: Integration described on this webpage may temporarily not be available.
0
Forms filled
0
Forms signed
0
Forms sent
Discover the simplicity of processing PDFs online

Upload your document in seconds

Fill out, edit, or eSign your PDF hassle-free

Download, export, or share your edited file instantly
Switch from Adobe Acrobat to pdfFiller in 4 simple steps
1
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 Adobe Acrobat

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

Fill out PDF forms
Stop spending hours doing forms by hand. Complete your tax reporting and other paperwork fast and error-free.

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.
Customer trust proven by figures
pdfFiller is proud of its massive user base and is committed to delivering the greatest possible experience and value to each customer.
740K
active users
239
countries
75K
new subscribers per month
105K
user reviews on trusted platforms
420
fortune 500 companies
4.6/5
average user rating
Get started withan all‑in‑one PDF software
Save up to 40 hours per month with paper-free processes
Make quick changes to your PDFs even while on the go
Streamline approvals, teamwork, and document sharing

G2 recognizes pdfFiller as one of the best tools to power your paperless office
4.6/5
— from 710 reviews
Video Review on How to Modify Sign Contract - Adobe Acrobat
Our user reviews speak for themselves
Read more or give pdfFiller a try to experience the benefits for yourself
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?
Contact Support
How do you sign a PDF that has already been signed?
Open a PDF that contains multiple signature fields.
Right-click the first signature field to be signed and choose to Certify with Visible Signature option.
The Certify Document window will appear.
Click Sign.
Save the PDF & enter the password for your Certificate/USB Token.
How do I sign an electronically signed PDF?
Open your PDF document.
Right-click in the PDF document where you want to add the Digital signature.
Select Sign Document from the right-click menu.
Select Digital Signature.
How do I add a second signature to a PDF?
On the Command bar, click Document > Signatures > Add Signature Field. Click and drag to draw a rectangle for the first signature. Click Add Signature Field again. Click and drag a second rectangle for the second signature.
How do I redact a signed PDF?
Choose Tools > Redact. On the Edit menu, choose To redact Text & Images. Select the text or image in a PDF, right-click, and select Redact. Select the text or image in a PDF, choose To redact in the floating context-menu.
Can you edit an Adobe sign template?
The Adobe Acrobat Sign authoring environment opens to allow you to edit the template properties, type, name, and field placement/assignments. Make any changes you require and click Save when done.
How do I edit an existing Adobe signature?
Change your e-signature in new Acrobat From the signature dialog, select the cross (X) sign beside the previously added signature. Select the X sign. Select the X sign. To add a replacement signature to the document, select Add Signature.
How do I void an agreement in Adobe sign?
All other changes Log in to Adobe Sign. Go to the "Manage" tab. In the "Status" column (left-side of the screen), locate the agreement that you wish to void within the "In Progress" or "Waiting on You" sections. Click on the agreement, and in the "Actions" section (right-side of screen), click the "Cancel" link.
Can you amend a document after it has been signed?
This is called a post-signature amendment and requires a written agreement between the two parties. In order to alter the original agreement, you will have to sign a new contract that defines the necessary changes. This second contract remains valid for as much time as the initial document.
Join 64+ million people using paperless workflows to drive productivity and cut costs