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Upload a PDF from your device or cloud storage, check the online library for the form you need, or create a document from scratch.
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Edit, annotate, redact, or eSign your PDF online in seconds.
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Share your document, download it in your preferred format, or save it as a template.
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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.

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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.

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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?
Contact Support
How can I add comments to a PDF?
Choose Tools > Comment.
Draw in the PDF:
To edit or resize the markup, select it and drag one of the handles to make your adjustments.
To add a pop-up note to the markup, select the Hand tool, and double-click the markup.
(Optional) Click the close button in the pop-up note.
How do I insert a PDF file into another PDF file?
Open the PDF that serves as the basis of the combined file.
Choose Tools > Organize Pages.
In the secondary toolbar, choose Insert > From File.
Select the PDF you want to insert and click Open.
How do I add comments to a PDF in Windows 10?
Choose Tools > Comment.
Draw in the PDF:
To edit or resize the markup, select it and drag one of the handles to make your adjustments.
To add a pop-up note to the markup, select the Hand tool, and double-click the markup.
(Optional) Click the close button in the pop-up note.
Why can't I annotate on PDF?
Having trouble making annotations and selecting the text on the page? This usually happens with scanned PDFS, due to a lack of embedded text in the document. Embedded text is what allows us to render your file as a collection of text rather than an image.
How do I add annotations to a PDF?
Open a PDF in Acrobat and select the Comment tool. Add PDF annotations to your file. You can add text boxes and sticky notes, underline text, strikethrough content, highlight text and more.
How do I annotate a PDF for free?
Yes, you can easily annotate and mark up PDFs for free using Xodo across web, desktop, and mobile platforms. Seamlessly add notes, highlight important text, underline key points, and even draw or write freehand on your PDF files with Xodo. To get started, simply open your PDF in the free online PDF annotator.
How do I insert comments in a PDF?
Adding comments using the Add Comments tool Click the options menu (), and choose Add Comments. Select a file you want to comment, and click Add Comments in the right pane.
Where is the annotate button in PDF?
To display annotate (Comment) tools on a PC or Mac computer: Locate the pdf on your computer. Open on PC: Right-click the pdf and select Open With > Adobe Acrobat Reader. Open on a Mac: Click the file to select it. Click on the Comment button to display the Comment tools OR from the View menu, select Toolbars > Comment.
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