An HR manager needs to add a company logo to the top of a 12-page policy document. A freelance consultant wants to insert a handwritten signature image into a contract before sending. A teacher needs to stamp a "Reviewed" image on specific pages of a student submission. All three need the same basic operation: place an image at a precise location on a PDF page, without rebuilding the document and without paying for Acrobat Pro.
Most free online tools upload your file to a remote server, add the image, and send it back. That is a real concern when the document is a contract, a medical form, or a confidential report. This tool embeds images directly in the browser using PDF-Lib. Your PDF and your image never leave your device.
How It Works
- Upload your PDF and image — Load the PDF by dragging it onto the upload area or clicking to browse. Then select your image file (PNG, JPG, WebP, or SVG). The PDF renders page by page in the preview panel. Configure image settings before placing: set width, opacity (0 to 100%), rotation (0°, 90°, 180°, or 270°), blend mode (Normal, Multiply, Screen, or Overlay), and which pages to apply the image to (Current Page, All Pages, Odd Pages, or Even Pages).
- Click to place, drag to position — Click anywhere on the PDF preview to drop the image at that exact coordinate. Drag it to fine-tune its position. Use the corner handles to resize. Multiple images can be placed in the same session; each appears in the Placed Images list and can be cleared individually or all at once.
- Save and download — Click Save PDF with Images. PDF-Lib reads the existing page structure and embeds each image as a vector-positioned image object at the specified coordinates. PNG and JPEG files are embedded directly without re-encoding, preserving original image quality. Download the updated PDF immediately.
Compatibility & Support
Supported Input → Output Formats
- PDF input: Any standard PDF, text-based or scanned, single or multi-page
- Image input: PNG (including transparent backgrounds), JPG/JPEG, WebP, SVG
- Output: PDF with embedded image objects placed at specified coordinates
- Blend modes: Normal, Multiply (darkens overlapping areas), Screen (lightens), Overlay (contrast boost)
- Page targeting: Current page only, All pages, Odd pages, Even pages
Unsupported Formats
GIF, BMP, TIFF, and HEIC image formats are not accepted as insert sources. Convert them to PNG or JPG first before uploading. Animated GIFs are not supported; only static images embed into the PDF structure. The tool accepts PDF input only, not Word or PowerPoint files as the base document.
File Size Limits
All processing runs in-browser via PDF-Lib with no server upload, so no file size cap is imposed externally. Very large PDFs or high-resolution source images may take a few extra seconds to render in the preview on older hardware, but will process fully on any modern browser.
Who Should Use This Tool?
- Students: A student submitting a lab report as a PDF can insert a hand-drawn diagram or chart photograph at the exact position in the document where it supports the written analysis, without converting to Word and reformatting.
- Freelancers & Designers: A freelance designer delivering a brand usage guide can insert the client's finalized logo PNG (with transparent background) onto the cover page and apply it to all header positions across every page in a single operation.
- Office Professionals: An HR manager adding a company letterhead logo to a multi-page policy PDF can use the All Pages option to embed the image consistently across every page without placing it manually on each one.
- Developers: A developer prototyping a document annotation workflow can use this tool to test image placement coordinates, blend mode rendering, and multi-page application behavior before implementing the same logic programmatically with PDF-Lib.
Key Features
Here's what separates this tool from generic alternatives:
Click-to-Place Precision
Click anywhere on the PDF preview to drop the image at exactly that coordinate. Drag to refine position and resize from corners. No fixed placement zones or limited position presets.
Opacity and Blend Mode Control
Set opacity from 0% to 100% and choose from Normal, Multiply, Screen, or Overlay blend modes. Useful for semi-transparent logo overlays, watermark-style images, and images that need to sit behind existing text.
Multi-Page Application
Apply the same image to All Pages, Odd Pages, or Even Pages in one pass. Adding a logo to every page of a 50-page report takes the same effort as adding it to one page.
PNG Transparency Support
PNG files with transparent backgrounds embed cleanly without a white box around the image. Signatures, logos, and stamps with cut-out backgrounds sit directly on the page content as intended.
Multi-Image Session
Place multiple images in a single session. Each image appears in the Placed Images list for review. Clear individual placements or reset all at once before saving the final PDF.
No Server Upload
PDF-Lib runs entirely in your browser. Medical documents, legal contracts, and financial statements are never sent to any external server during the image insertion process.
Why This Tool Beats the Alternatives
- No account, email, or signup required at any point.
- No watermarks added to the output PDF.
- No server upload; confidential documents stay in the browser throughout the entire session.
- Click-to-place positioning rather than fixed corner or center-only placement options.
- Blend mode control (Multiply, Screen, Overlay) not available in most basic free image insertion tools.
- Multi-page application in one operation rather than repeating the insert manually on each page.
Pro Tips
- For logos and signatures, always use PNG format with a transparent background rather than JPG. JPG does not support transparency, so any signature or logo saved as JPG will insert with a white rectangular background that covers the PDF content beneath it.
- When adding a semi-transparent overlay (a "DRAFT" stamp image or a faint brand watermark), set opacity between 20% and 40% and choose the Multiply blend mode. This lets the underlying PDF text remain readable while the image is visibly present on the page.
- If you need the same image on every page but at different positions on odd versus even pages (like a logo on the right on odd pages and left on even pages), run the tool twice: once targeting Odd Pages with the first placement, then reload the output and run again targeting Even Pages for the second placement.
Upload your PDF, select your image, click to place it, and download the updated file in seconds. If you need to add text-based stamps like "APPROVED" or "CONFIDENTIAL" rather than image files, the Add Stamps to PDF tool handles that in the same browser-based workflow.