Whether you need to fill out a Schedule C, W-9 or any other PDF form, never miss quick filling software. Here are the 5 best PDF form fillers introduced along with their pros and cons. All of them offer free service.

1. SwifDoo PDF

SwifDoo PDF is one of the best PDF form fillers that enables you to fill out a PDF form for free. It can highlight the interactive form fields so that you can know which fields need to be filled out. With this AI form filler, you can fill out forms efficiently. What's more, SwifDoo PDF offers various annotation tools, which enable you to add check marks, solid black dots, and cross marks manually. After filling out a form, you can share it via email or a cloud-based service right in the software.

Serving as a full-featured PDF editor, SwifDoo PDF allows you to add text boxes to a PDF, recognize text in a PDF with OCR, encrypt a PDF, and more. All in all, SwifDoo PDF is a trustworthy tool. You can download it and try it out. 

The best thing about the PDF form filler is that it makes filling a PDF form that’s not fillable possible. SwifDoo PDF allows you to directly type text on the text fields. To fill in a checkbox, tap the “Checkbox” button under the “Annotate” menu and click the box. With rich tools in the program, you can do many more to perfect your work. Here are some of highlights of it.

• Annotate PDFs with all the mostly used annotation tools, such as adding stamps;
• Flatten, password protect, and electronically sign PDFs;
• Convert PDF to Word, Excel, and dozens of formats and vice versa.

Pros:

• One of the fastest and most simple-to-use PDF form fillers.
• PDF editing, converting, splitting, signing and lots of other capabilities.
• Cost-saving choice

Cons:

• Windows-only

2. PDF Expert

PDF Expert is a handy software application to edit, annotate, sign, and fill out forms on Mac. The PDF form filler for Mac features a modern, intuitive interface. It enables you to tick checkboxes and fill in empty text fields effortlessly. In terms of how to fill out PDF forms on Mac, open the files in PDF Expert, click “Annotate” on the top, choose the text adding tool and start typing. To fill checkboxes, type X or select the stamp tool to add tick mark images.

If your form is fillable, open it in the PDF form filler, click the fillable form fields to type text or check boxes.

Pros:

• Ability to fill out fillable or non-fillable PDF forms
• Straightforward user interface
• Have mobile app for iPhone and iPad

Cons:

• Mac-only

3. Adobe Acrobat Reader

Adobe Acrobat Reader provides an excellent form-filling experience with the powerful form detection feature. It is the best free PDF form filler that can be free downloaded for both Windows and Mac. Basically it allows you to fill out fillable PDF forms by directly tying and clicking on the fields. Better yet, it can recognize the blank fields that need to be filled and make them fillable. This is particularly useful for non-interactive forms.

The Adobe PDF form filler offers basic functions for free, including filling and signing forms, and adding text and notes. To fill out a form, choose the Adobe Fill & Sign tool, and select the text, X mark, check mark and other symbol adding options. If the author has specified which fields you can fill, just click the fields to start filling. If needed, the pro version lets you convert PDF to Word, OCR, merge, and compress PDF files.

Pros:

• Support filling interactive forms, and creating a fillable PDF from a Word document.
• Allow adding comments to PDFs, and electronically or digitally signing a PDF file.
• You can install the free PDF form filler app for Android and iPhone.

Cons:

• The program takes up a lot of space on your computer.
• It’s a bit slow and runs not smoothly sometimes.

4. pdfFiller

pdfFiller, as the name suggests, is another PDF form filler that lets you fill out PDF forms for free. It is web-based and accessible from any device like Linux, Mac, and mobile phones. It allows you to upload documents from local file folders, Google Drive, emails, URLs and more sources. With the PDF form filling software, you can tick checkboxes, insert cross marks, type text, and sign with your name. All you need is to register and sign into an account on the site.

The free PDF form filler enables you to make other changes to PDF content online. You can do spell check, search and replace text, and reorder, delete and add pages to a PDF.

Pros:

• It’s a cross-platform tool to fill and sign PDF documents online for free.
• The PDF form filler Chrome extension is available for your instant access.
• Allow uploading files from multiple sources.

Cons:

• File size is limited to 25MB for free service.
• It requires users to sign up with payment info for free trial.

5. DocFly

DocFly is a PDF form filler, creator and editor for online and free use. It comes with a clean and easy-to-navigate interface. While filling in a PDF form, you can add checkmarks, cross marks, text, images, and signatures. A great part about the online PDF form filling tool is that it doesn’t require registration. What other things the software can do for you include rotating, merging, and watermarking PDF files.

Pros:

• Fill out PDF forms and download the finished documents for free.
• No need to sign up.
• Allow you to create fillable PDF forms from scratch by adding fields such as drop-down buttons.

Cons:

• Only 3 modified files can be downloaded or shared per month.

Conclusion

Have you decided which PDF form filler to adopt for your current need? For just filling out forms, Adobe Reader might be the best choice. If you desire to further edit your PDF, or tend to use more advanced features, try SwifDoo PDF for 7 days for free. The best free form filler for PDF documents should be the one that settles your demand down and has no safety issue.

FAQs

Q: How do I turn a PDF into a fillable form?

A: You can convert a PDF to a fillable form with Adobe Acrobat Pro. Open the PDF in Adobe, choose “Tools” > “Prepare Form” and Acrobat will work its magic to make the PDF fillable.