Your files stay on your device

File processing runs in your browser. Documents are not uploaded to our servers. The site may download processing engines and send usage or feedback events without file contents.

How we handle your data →

PNG to PDF

Create a clean PDF presentation sequence from PNG charts or annotated visuals.

Synthetic example — review the operation settings before running.

Your documents stay on this device. Tool downloads and usage statistics do not include file contents.

Local limits: Max total size: 40 MB

Files are processed in your browser. They are not uploaded to this site.

A practical guide

Give each visual a deliberate page.

  1. Select the PNG charts and arrange the intended presentation order.
  2. Choose a page size and margins; use original preparation to retain transparency.
  3. Create the PDF and inspect chart labels and transparent areas.

Try this example

Place a title graphic before two transparent PNG charts. Create a three-page PDF and review the chart labels at the size your audience will see them.

Before

  • PNG 1
  • PNG 2

After · one PDF

  • 2-page PDF
Input and expected output for this task. Illustrative example.

Before you start: If JPEG preparation is selected, transparent pixels are filled white; the output does not recreate chart data.

Number the image PDF
What you get

Convert PNG images to one PDF. Original mode preserves image transparency; JPEG preparation fills transparent areas white.

Limits and important details

Original mode: 40 images, 40 MiB input, 16 MP per image / 40 MP total; no EXIF correction. Optional preparation: 10 images, 10 MiB each, 40 MiB total, 12 MP per image / 24 MP total before decode, 40 MiB output. Preparation applies browser EXIF orientation and downsizes without upscaling. JPEG is lossy and fills transparency white; PNG preserves transparency. Image size uses prepared dimensions as PDF points. No HEIC or OCR; limits are not a total memory guarantee.

Example

Choose two PNG images and keep original preparation. Create a two-page PDF and inspect transparent areas against the PDF viewer background. JPEG preparation fills transparency white.