Convert, edit and organize PDFs without installing software
Place a stamp or signature image on your PDF, move and resize it, then save the edited file.
The selected PDF is not uploaded to WorkCal servers.
For the cleanest result, use a transparent PNG stamp or signature image.
Drag the selected image to move it. Drag the bottom-right handle to resize it.
WorkCal PDF lets you add a stamp or signature image anywhere on a PDF without installing a desktop editor. Drag the image to move it, resize it with the handle, and download the finished PDF when you are done.
Use it to add a signature to PDF, add a stamp to PDF, place initials, or add a company seal image to a document. PNG, JPG and WebP files are supported; a transparent PNG usually gives the cleanest result.
The selected PDF and image are processed in your browser rather than uploaded to WorkCal servers. This can be useful for contracts, forms and other documents you may not want to send to a conversion server. An internet connection is still required to load the PDF libraries.
For best results, use a transparent PNG with no white rectangle around the stamp or signature.
No. The PDF and stamp or signature images are processed in your browser and are not sent to or stored on WorkCal servers.
Yes. Move to another page and use “Add Another to This Page” to place the same image wherever you need it.
Yes. You can load a PNG, JPG or WebP stamp, seal, initials or signature image, place it anywhere on the PDF, and adjust its size and opacity.
Yes, but the white rectangle will remain visible. A transparent PNG is recommended for a cleaner result.
No. This tool places an image you provide onto a PDF. It does not create certificate-based digital signatures and it does not send signature requests to other people.
Continue with another PDF task without leaving WorkCal.