Image to PDF Converter

How Image to PDF works

Combine JPG, PNG and WebP images into a single PDF with page size, orientation and margin control. Everything happens inside this page: the tool reads your input, runs the calculation or conversion locally, and hands the result back to you. Nothing is transmitted, because there is no backend to transmit it to.

That design choice is deliberate. Most free tool sites upload your files to a server, process them there, and quietly keep a copy. Toolcin cannot do that — the site is a set of static files. If your connection dropped the moment the page finished loading, every tool would still work.

What happens to your images

Each queued image becomes one page, in the order shown. You can move an image up or down, remove it, and add more at any time before exporting. When you press the button, the tool writes a PDF 1.4 file itself — there is no library call that phones home and no server in the loop.

The page is assembled in your browser's memory and downloaded directly. A batch of phone photos can be several megabytes, so the practical limit is your device's memory rather than an arbitrary quota.

Choosing a page size

“Fit page to each image” creates a page whose dimensions match the image, which is what you want for a photo album or for a set of screenshots where white space would be noise.

A4 portrait and A4 landscape place each image on a standard sheet, scaled to fit. This is the correct choice when the PDF will be printed or when mixed image sizes need to look consistent — a portrait photo and a wide screenshot on the same A4 page will at least share the same paper size.

Quality, file size and the trade-off

The quality slider controls JPEG compression, from 50 to 100. At 88 — the default — most photographs are visually indistinguishable from the original while the file is a fraction of the size. Above about 92 the file grows quickly for very little visible gain.

The margin control adds a white border in points, from 0 to 80. A margin of 0 is right for full-bleed photos; a margin of 20–40 makes a document look like a scanned page rather than a pasted image.

Making scans look like documents

Three things separate a good scanned PDF from a bad one. Capture at 300 dpi if the page contains text, because 150 dpi is enough for a photo but makes small print mushy. Photograph straight on, since perspective correction is not something this tool does. And keep every page the same orientation, otherwise the reader rotates the phone for half the document.

If you need searchable text inside the PDF, this tool cannot help: the output is a picture on a page. Run the scanned pages through the OCR reader first, or keep a separate text copy alongside.

Good to know

• Works offline once loaded, including on flights and in locked-down networks.
• No file size limit beyond your device's own memory.
• Free to use, with no account and no usage counter.
• Results are produced locally, so they are not logged or shared with anyone.

Questions