How to Edit a PDF with ModernPDF
Upload your PDF
Drag your PDF into the editor. It opens instantly in your browser — no server upload needed.
Make your edits
Use the toolbar to add text, insert images, draw shapes, highlight passages, or add sticky notes. Click anywhere on the page to place elements, then drag to reposition them.
Download your edited PDF
Click save and download the modified document. All edits are permanently embedded in the output file.
What You Can Edit
ModernPDF's editor lets you add new text with custom fonts, sizes, and colors; insert images (logos, photos, stamps); draw shapes including rectangles, circles, lines, and arrows; highlight or underline existing text; add freehand annotations with a drawing tool; and white out areas to cover content you want to hide visually.
Editing vs. Modifying Original Text
PDF was designed as a final-format document, so directly modifying the original text stream is complex. ModernPDF lets you layer new content on top of the existing document — which covers the vast majority of editing needs. If you need to change the actual underlying text, consider converting to Word, making your edits, and exporting back to PDF.
Common Editing Tasks
Adding a company logo or stamp to documents. Annotating blueprints, designs, or proofs with feedback. Filling in missing information on forms. Covering up outdated information and adding updated text. Adding page numbers, dates, or watermarks.
Frequently Asked Questions
Can I edit the existing text in a PDF?
You can add new text anywhere on the document and white out existing text to effectively replace it. Directly modifying the original embedded text (changing individual words in the source) requires tools like Adobe Acrobat Pro. For extensive text edits, consider converting to Word first.
Can I add images to a PDF?
Yes. Upload any JPG or PNG image and place it anywhere on any page. Resize by dragging the corners, and reposition by dragging the image itself. This is perfect for adding logos, stamps, or photo documentation.
Will editing affect the document quality?
No. ModernPDF preserves the original PDF content. Your additions are layered on top without recompressing or modifying existing text, images, or vector graphics.
Can I undo edits?
Yes. The editor supports undo/redo while you're working. Once you download the final PDF, the edits are permanently embedded, so keep your original file if you might need to start over.