FileCrank's image editor just got a powerful new tool: Image Overlay. You can now place any image directly on top of a PDF page or existing photo — drag it into position, resize it with locked aspect ratio, and drop it in place with a subtle, professional blend. No design software required.
What Is Image Overlay?
Image Overlay is a new button in the FileCrank image editor toolbar. It lets you upload a second image — a logo, a stamp, a transparent PNG signature, a badge, any image file — and composite it on top of the page you are currently editing.
Once placed, the overlay sits at roughly 40% opacity. That means it blends visibly but not aggressively into the document beneath it. The effect reads as intentional and polished: a watermark that clearly belongs there, a logo that sits naturally in a corner, a stamp that looks applied rather than pasted.
How to Use Image Overlay
The full workflow takes under a minute.
Step 1: Open the editor
Go to Edit PDF → and upload your document. Click the edit button on the page you want to work on. The image editor modal opens.
Step 2: Click "Add Image" in the toolbar
In the editor toolbar, locate the Add Image button. Clicking it opens a file picker. Select the image you want to overlay — JPG, PNG, WebP, and transparent PNGs are all supported.
Step 3: Drag to position
The image appears centered on the canvas. Click and drag it anywhere on the page. There are no snap grids or alignment constraints — you place it exactly where you want it.
Step 4: Resize with corner handles
Grab any corner handle to scale the overlay. Aspect ratio is locked automatically, so your logo or signature will never stretch or distort. Pull out to make it larger, push in to make it smaller.
Step 5: Accept and continue
When the position and size look right, click Accept (or the checkmark). The overlay is composited into the editor canvas at ~40% opacity and becomes part of the page. You can then make additional edits — draw annotations, add text, crop — before downloading.
Why Transparent PNGs Matter
Most professional stamps, logo files, and signature graphics are distributed as transparent PNGs. The transparency layer removes the white rectangular background that would otherwise block out whatever is underneath.
When you overlay a transparent PNG in the FileCrank editor, only the actual graphic — the ink, the icon, the mark — appears on the page. The rest of the page shows through cleanly. Combined with the 40% opacity blending, the result looks like a professionally applied overlay rather than a cut-and-paste job.
If you only have a JPG version of your logo, it will still work — just note that the rectangular background will be included. For a clean result, a transparent PNG is always preferable.
What You Can Do With It
Company logo watermarks. Export a PDF and need it to carry your branding? Drop your logo PNG onto each page in the editor. At 40% opacity it is visible without being distracting — exactly how a professional watermark should behave.
Signature and stamp overlays. Many teams collect signatures and approval stamps as transparent PNGs. Instead of routing a document through a dedicated e-signature platform, you can place the signature image directly on the page. Resize it to fit the signature line, position it precisely, and download the signed PDF.
Photo compositing. Working with images rather than PDFs? Overlay a product shot onto a background, add a brand badge to a photo, or composite two images together. The drag-and-resize interface works on any file the editor supports.
"Approved," "Draft," and "Confidential" stamps. Many compliance workflows use image-based stamps — official-looking marks with specific typography and borders. Overlay them in the editor without needing access to the original document's source files.
Privacy and Processing
The overlay compositing happens on the HTML Canvas in your browser tab, so you see changes instantly. When you click Download, the composited image is sent to our server for export; the final result is rendered server-side and returned as a PDF or image file — and that file is deleted from our servers immediately after.
No account. No sign-up. No file storage on our end.
Try It Now
Open Edit PDF →, upload a document, and click Add Image in the editor toolbar. If you are working with images directly, you can also use JPG to PDF → to combine images into a PDF first, then edit from there.
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