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Editing tools overview

Explore a comprehensive suite of Loio’s editing features. Add text, insert images, redline changes, and rewrite existing content directly within your PDFs.

Available on: All plans (rewriting content — Plus and Pro only)


With Loio, you can fill out or tweak a PDF contract, form, or agreement in seconds—no need to convert files or juggle multiple apps. Simply upload, edit, sign, and send a document for signatures within one smooth workflow.

Add text to PDFs

This tool lets you overlay text directly onto a PDF, which makes it perfect for filling in personal details in contracts, applications, and other documents.

How to use:

Select Text in the left-hand toolbar > Click anywhere on a document > Start typing.

Apply your signature or initials

Execute deals and sign off on documents by placing your legally binding electronic signature onto a PDF.

How to use:

Select Signature or Initials > Create your eSignature by typing, drawing, or uploading an image > Drop your signature onto a document > Adjust a signature’s position and size.

Add a date

Place a formatted date anywhere on your PDF, ensuring your contracts and agreements are accurately timestamped and finalized.

How to use:

Select Date > Drop the current date onto a document and edit if needed > Adjust a date’s position and size.

Add checkmarks

Insert checkmarks into your PDF to fill out forms, complete checklists, or select options within formal applications and surveys.

How to use:

Select Checkmark > Place a checkmark onto a document > Adjust a checkmark’s position and size.

Insert an image

Upload and position images directly onto your PDFs—ideal for adding company logos, profile photos, charts, or visual evidence to your reports and documents.

How to use:

Select Insert Image > Upload an image from your device > Place an image onto a document > Adjust an image's position and size.

Draw and highlight

Use the freehand Draw tools to annotate and mark up your PDFs:

  • Pen for freehand drawing

  • Marker for hand-drawn highlighting

  • Text Highlight for highlighting specific lines

  • Eraser to quickly remove your annotations.

Edit PDF content

Modify the original content of your PDF: add, delete, or rewrite text and tweak formatting. This tool is perfect for fixing typos, updating terms in a contract, or refreshing outdated information without going back to the source file.

How to use:

Select Edit Content > Double-click the content block you want to modify > Edit or remove content as needed > Click Apply changes to save your progress.

If you have any questions, our support team is here to help. Contact us at support@loio.com or use the live chat button in the bottom-right corner to reach out.

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