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  2. Convert PDF to any other formats or vice versa;
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Home / Blog / Use the Best PDF Filler Free to Boost Your PDF Editing | Online & Desktop

Use the Best PDF Filler Free to Boost Your PDF Editing | Online & Desktop

By Kevin | Follow twitter | Updated on December 30, 2022

Filling out PDF forms is a common scene in daily work or life. A handy PDF filler to use at that moment would be nice and efficient. While so many online and desktop PDF fillers are prevailing on the internet which makes it hard for you to choose. Therefore, this blog prepares you with 2 PDF fillers: one is an online version and another is a desktop version. You can fill PDFs easily no matter at home or on the go now. Just read the content below:

PDF filler

pdfFiller: Best Online Free PDF Filler

Online PDF filler is convenient to use for you can open it on any device. And pdfFiller is such an online tool for you. You can easily open PDFs on its website and fill in information quickly.
And this blog list some reasons why pdfFiller stands out:

Convenient Filling Experience

Opening PDF forms with this tool, your mouse would turn into an enter mark and you just need to click it to enter texts. Assistant lines would help you locate texts accurately and keep the format of your documents. A minimal toolbar would appear when texting, you can move, delete, adjust the font size, and confirm your texts by using it. For boxes that need to enter marks, pdfFiller also prepares you with check and cross marks in advance. Last, signatures can be uploaded or written by yourself. Using its templates is also OK.
All your changes can be saved automatically in case you forget.

pdfFiller - best online free PDF filler

An All-in-one Toolbar

Besides the features mentioned above in the toolbar, pdfFiller has more for you.
For inserting, you can add more things like:

  • Date
  • Image
  • New Text Box
  • Sticky Notes
  • Highlight
  • Arrow/Line

For deleting, you can erase or simply blackout unnecessary content with the Erase and Blackout tool. After talking about the toolbar, the following is the sidebar offering PDF page management. Users could adjust page order, delete useless pages, rotate pages, etc. there.

30 Days Free Trial

It’s free to use pdfFiller after signup and choosing a subscription plan for 30 days. Exporting PDFs after editing will just ask you to sign up for an account or log in to it. Using a Google account or Apple ID to log in is also OK, then you need to choose a plan and fill in the payment information to export your PDFs.

Free pdfFiller

This is the end of this online PDF filler. Though it is already great to use, it cannot offer a no-login service and a completely free service. So, a more powerful free PDF filler for the desktop is waiting for you in the next part.

SwifDoo PDF: Best PDF Filler Free on Desktop

For desktop users, here is a better choice for the PDF filler. SwifDoo PDF is introduced here. It’s a comprehensive PDF editor that can provide you with PDF filling, editing, converting, and compressing services, etc. More information about using it to fill PDFs is listed below:

Free PDF Filler

Yes. You can use SwifDoo PDF for free. Edit, fill, convert… all the features are available and require you for nothing. First, you can use this free PDF filler without login. After editing, you can export PDF files for free, no need to sign up for an account or choose a subscription plan. What a bargain it is! Don’t hesitate, just download it for free now!

SwifDoo PDF - All-in-One PDF Editor
  • Annotate PDFs by adding notes, bookmarks, etc.
  • Convert PDFs to Word, Excel, and other editable files
  • Edit, compress, organize, and split PDFs
Free Download
Windows 11/10/8.1/7/XP

Fill PDFs Freely

Same as pdfFiller, SwifDoo PDF enables you to fill in texts anywhere you want. Just click your mouse at those blanks on PDFs and enter texts. You can adjust the font, size, color, etc. of texts in the head toolbar. For inserting shapes like lines and arrows, you can find them in the Annotate. Signatures can be input and uploaded by yourself, or you can also use handwriting to create a new signature. The software would store your signature and you can add it directly when the next time you need it.

SwifDoo PDF - best PDF filler free on desktop

More Than a PDF Filler

As mentioned above, SwifDoo PDF can help you do lots of things. Converting PDFs to MS Office files, images, HTML, etc., and vice versa, protecting PDFs with passwords and removing passwords from PDFs… All these features can be easily found in the SwifDoo PDF.

The Bottom Line

This is the end of this blog. 2 PDF fillers are introduced to you: an online tool - pdfFiller and desktop software - SwifDoo PDF. Both tools are great to use. Just pdfFiller would ask you for a subscription to export files. While SwifDoo PDF offers you a no-login service and a free trial for 15 days. No limit for editing and exporting during the trial. Try this free PDF editor now!



Kevin is an experienced editor for SwifDoo focused on tech blog writing. Familiar with all kinds of PDF editing software on the market, specializes in composing posts about PDFs. All the topics he chooses are aimed at bringing more benefits to users.

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