How do I make a field not fillable in PDF?

To prevent users from editing your form fields in a fillable PDF, you must \"flatten\" or lock the form before saving.

How to make a field mandatory in PDF?

To set the field as read-only, required or not required, do the following: Double-click a selected form field to open the Properties window. In the General tab, To set the field as read only, select Read Only. To set the field as mandatory to fill, select Required. ... Click Close.

How do I lock certain fields in PDF?

How to Lock Fillable PDF Fields Open your PDF. Add your fillable fields (logo, contact information and disclosure) Save the document and keep it open. On the right-hand menu, click the purple shield icon \"Protect\"; if you do not see this icon, select \"More Tools\", find \"Protect\" and click \"Add\".

How can you make a document field required?

Set the Document Field as required by Field Dependency Rule. Navigate to ADMIN --> Configuration --> Field Dependencies. Click the Create button. Select the specific document type and select a field which is used to control another the target field. Click OK.

How do I specify a field in a PDF?

To select individual form fields in different parts of the PDF page, Ctrl/Command-select each form field. To select all form fields in an area of the page, use the Select Object tool to drag a selection marquee around the area. To deselect an individual form field, Ctrl/Command-select that field.

How to create a mandatory field in Excel?

Select the cell(s) you want to create a rule for. Select Data >Data Validation. On the Settings tab, under Allow, select an option: ... Under Data, select a condition. Set the other required values based on what you chose for Allow and Data.

Create Mandatory Field in Document For Free

Drop document here to upload

Select from device

Up to 100 MB for PDF and up to 25 MB for DOC, DOCX, RTF, PPT, PPTX, JPEG, PNG, JFIF, XLS, XLSX or TXT

Last updated on Sep 11, 2026

Try most popular PDF tools

Discover a full set of tools to handle any document task.

Edit PDFs

Make quick PDF edits online.

Sign

Add legally binding signatures.

Merge

Combine multiple PDFs.

Request signatures

Send a document for signing.

Convert

Transform PDFs into other formats.

Find form online

Browse the online forms library.

Rearrange

Change the order of pages.

Send PDFs for review or editing.

Compress

Reduce PDF file sizes.

pdfFiller ranks among the best

pdfFiller is rated 4.6 out of 5 stars across 1,000+ G2 reviews.

Read all reviews

Good afternoon, I have subscribed to PDFfiller and have even been charged $20 yesterday to use this program, however, when I try to log in, my password isn't recognized. Also, when I try to go back to change anything on my form, I find it time consuming to try to do this.I don't have a lot of spare time at work & I really don't like using the typewriter, because if I make a mistake & find it later.. I can't go back and change it, hence PDFfiller.. It says a msg will be sent to my email, however, I never receive this msg. It's not in my Inbox, Spam or Trash folders. I would like to use this program at work, so I don't have to use a typewriter. Can you help me with this log-in issue? Many thanks, Joyce Durbin From: Notification - PDFfiller <notifications@pdffiller.com> To: jdurbin_99@yahoo.com Sent: Wednesday, October 12, 2016 4:21 PM Subject: [PDFFiller] Thanks for subscribing to PDFfiller [ Do Not Reply ] Hello, Thank you for subscribing to the PDFfiller Monthly Personal plan. Your payment has been successfully processed. Your subscription details are as follows: Username: jdurbin_99@yahoo.com Subscription ID: 4k9cgm Plan Type: Monthly Personal, billed at $20 Next Automatic Renewal: 11/12/2016 You can now enjoy premium PDFfiller features that will enable you to edit, fill, and sign documents, collaborate with others, request digital signatures, eFax, and much more! You can also find documents you may need by searching our library of over 10M documents and fillable forms here. To change your payment information, cancel, or upgrade your subscription, visit My Account. You can review the cancellation and refund policy here or by speaking to our 24/7/365 support team. If you have any questions, please do not reply to this email, and instead please contact support by clicking the Contact Support button below. . Don't forget Download the PDFfiller app to access and edit your documents on the go, anytime, anywhere, from any iOS device. Thank you for choosing PDFfiller! The PDFfiller Team

Joyce