Add Image to PDF — Logo, Stamp & Overlay

Add Image to PDF runs the PDF document workflow job locally inside your browser. Add an image to your PDF — choose position, size, opacity, and which pages. Perfect for logos, stamps, watermarks, and signatures. The work happens on your machine, the result is generated on your machine, and the page exposes the controls you need to drive it without burying them in menus.

The processing pipeline is straightforward: your input is parsed by the open-source pdf-lib JavaScript library, transformed according to the options you select, and serialised back into a downloadable result. Accepted input formats are PDF, PNG, and JPG. The 200 MB per-file ceiling matches what a typical browser tab can handle without paging to disk.

Most people land on Add Image to PDF via a search at the moment they actually need the tool. That shapes the design: the page is a single screen with the input on one side, the controls in the middle, and the result on the other, so a first-time visitor can complete the job without reading documentation.

The execution model is straightforward: your file is bytes in the tab's memory, the engine reads those bytes, computes the result, and hands the result back to the browser. The transformation happens locally, which is why the tool keeps working when your network connection drops mid-job and why it produces the same result every run for the same input.

Constraints worth knowing about: inputs are capped at 200 MB to keep memory usage in a sensible range, multiple files can be processed in a single run, and the tool must be loaded over HTTPS for the in-browser engine to work. These are properties of the architecture.

As a workflow component, Add Image to PDF is the part you reach for when a single, well-defined PDF document workflow step needs to happen. It performs that step and returns a standard file you can carry into the next part of your pipeline.

Add Image to PDF is shaped around the recurring needs of two audiences: researchers archiving reference papers, who use it as a quick utility between bigger tools, and teachers distributing course handouts, who use it as their primary way of getting the job done. Both groups get the same defaults and the same speed.

When the job finishes, Add Image to PDF hands you the result as `{name}-image-added.pdf`. Filenames are derived from your input where possible, so a quick batch of jobs leaves you with a tidy folder rather than a pile of generic "output (3)" files. Nothing is auto-saved on Favtoo's side because nothing was ever sent there.

Add Image to PDF is honest about scope: it handles a single, well-defined PDF document workflow step. Specialist edge-case work — uncommon formats, very large inputs, or pipelines that need scripting — is what dedicated desktop apps are for. This page handles the common case quickly.

Add Image to PDF is one example of a broader pattern: utility software increasingly works as single-page, client-side experiences. Every page in the catalog is shaped that way, which keeps each tool fast to load and easy to recommend in a single link.

Useful patterns when working with Add Image to PDF: keep the input file open in another tab so you can compare against the result; give the output file a descriptive name when saving so you can find it later (the default name is sensible but generic); and treat each run as independent — the tool has no concept of "history", which means you cannot accidentally pollute one job with leftovers from another.

Add Image to PDF is built around the moment of need: a focused page you open when you have a specific task, complete the task, and close. The catalog contains many adjacent tools so the same model serves the surrounding parts of a typical PDF document workflow workflow.

For most failure modes, refreshing the page and re-running the job is enough — the engine has no persistent state to corrupt. If the same input fails twice in a row, the input itself is most likely the problem (a truncated file, an unexpected variant of the format, or a stream the engine does not recognise).

If Add Image to PDF solved your problem, sharing the page link with someone who has the same problem is the most useful thing you can do. The catalog grows mostly through word of mouth; visitors arriving through a recommendation tend to be the ones the tool serves best.