How to Convert PNG to PDF - Step-by-Step Guide

Quick start: convert PNG to PDF in four steps

1. Select images: Click "Select images" or drag your files into the converter.
2. Arrange pages: Drag thumbnails to reorder, remove unwanted pages.
3. Adjust layout (optional): choose automatic page sizing or A-series/Letter presets, set margins, and pick an image fit mode that suits your layout.
4. Create the PDF: Press "Create PDF" and download the merged document instantly. Both single-page and multi-page PDFs are supported.

What makes this converter different?

• Client-side processing: Images never leave your browser, keeping conversions private and lightning fast for sensitive documents.
• Multi-image support: Add dozens of images at once and arrange them with drag-and-drop sorting.
• Flexible layout: Auto-fit pages to each image or switch to standard paper formats with custom margins and placement modes.
• Transparency friendly: Preserve existing transparency so logos and design assets stay true to the originals.
• High-quality output: Preserves original resolution so exports look sharp on screen and in print.

Detailed walkthrough

Uploading images

Click the Select button or drop image files into the dashed area. The converter preloads each image so you can review dimensions, file size, and page order before exporting.

Reordering pages

Drag any thumbnail to a new position to update the page sequence. Page numbers update in real time, so you always know the order the PDF will follow.

Configuring layout

• Page size: Automatic sizing matches each image exactly; A4, A3, A2, and US Letter presets are ideal for printing.
• Margins: Add breathing room around images when using fixed paper sizes (measured in millimetres).
• Image fit: Fit keeps aspect ratio within the margins, Cover crops edges to fill the page, Stretch forces the image to match the page dimensions, and Original keeps natural pixel size centred on the page.

Exporting the PDF

When you click “Create PDF??the tool builds each page locally and shows progress as it works through your files. The finished document downloads automatically with a timestamped filename.

Popular use cases

• Design mockups: Combine UI screens or illustration boards into a single review-ready PDF.
• Receipts and invoices: Merge scanned PNG receipts into tidy records for expense reports.
• Lecture notes: Photograph whiteboard slides or handwritten notes and compile them into a printable PDF booklet.
• Brand assets: Export transparent logo variations while keeping their original background intact.

Tips for best results

• Group related PNGs in advance so the drag-and-drop list mirrors your intended story.
• Use automatic sizing for pixel-perfect exports; switch to A4/Letter when you plan to print.
• Keep margins small (5-10 mm) when printing design proofs; wider margins can help with handwritten notes.
• Stick with fit or original placement when you need to preserve proportions; stretch is best for solid backgrounds or charts.
• Timestamped downloads make versioning easy—sort by name to see your most recent exports together.

Frequently asked questions

Can I combine PNGs of different sizes?

Yes. Automatic sizing matches each page to the source image. When you choose a fixed page size, the converter scales images according to the fit mode you select.

Is there a limit to the number of images?

You can add as many PNGs as your browser can handle. Very large image sets may take longer to process, but everything happens locally without upload delays.

Will the PDF quality match the originals?

Yes. The converter embeds your image data without downgrading quality, so exports stay sharp on high-resolution displays and in print.

Start converting PNG to PDF today

The PNG to PDF Converter gives you full control over page order, layout, and file privacy in a lightweight web app. No installs, no uploads, just fast exports tailored to your workflow.