Full-resolution pixels
Beyond flattening transparency onto white, no extra compression is applied — your PNG's pixel data is embedded at full resolution.
PNG to PDF Converter
Convert PNG to PDF online for free. Keep full-resolution pixels, flatten transparency onto white, and download a clean one-page PDF in seconds securely.
- Full-resolution pixels
- Opens on any device
- Auto-deleted for privacy
- Simple workflow
Choose your file
Drop files here or click to upload
PNG· up to 20.0 MB per file
Files are private and deleted after conversion
Anonymous files: 20 MB. Free accounts: 50 MB and batches of 5. Paid accounts: 200 MB and batches of 100.
Why use this PNG to PDF?
Convert PNG to PDF online for free. Keep full-resolution pixels, flatten transparency onto white, and download a clean one-page PDF in seconds securely.
Opens on any device
The output is a standard ISO 32000 PDF that opens in any reader, browser, or built-in phone/computer viewer.
Auto-deleted for privacy
Uploads use encrypted HTTPS; generated PDFs are removed within 24 hours and source images within 6–24 hours.
Simple workflow
Choose a file, review the options, and create the result.
How to use the PNG to PDF
- 01
Upload your PNG
Select or drag one or more PNG images into the converter, from your device or a design export.
- 02
Transparency is flattened onto white
Because PDF pages are opaque, any transparent pixels in your PNG are automatically composited onto a white background before the page is built.
- 03
We build a single-page PDF sized to your image
Using pdf-lib (no external renderer), the server creates a PDF page matching your PNG's exact pixel dimensions — 1 pixel ≈ 1 point — clamped to a safe ceiling of about 200 inches per side for unusually large images.
- 04
Download your PDF
Your PDF is ready in seconds via a secure signed link. Converting several PNGs at once produces one PDF per image, bundled together in a ZIP rather than a single merged PDF.
Best source settings for the PNG to PDF
Choose settings that match the result you need.
↔ Swipe sideways to view every column.
| Need | Recommended setting | Best for |
|---|---|---|
| Page size (automatic) | There is nothing to configure: the PDF page matches your PNG at 1 pixel ≈ 1 point, without margins. EXIF orientation is applied automatically. Resize first if you need A4 or another paper size. | There is nothing to configure: the PDF page matches your PNG at 1 pixel ≈ 1 point, without margins. EXIF orientation is applied automatically. Resize first if you need A4 or another paper size. |
| Transparency (automatic) | PDF pages are opaque, so transparent PNG areas are flattened onto white automatically. Add a background before converting if you need another color. | PDF pages are opaque, so transparent PNG areas are flattened onto white automatically. Add a background before converting if you need another color. |
- Upload your PNG
- Select or drag one or more PNG images into the converter, from your device or a design export.
- Transparency is flattened onto white
- Because PDF pages are opaque, any transparent pixels in your PNG are automatically composited onto a white background before the page is built.
PNG to PDF input and output
Review what the tool accepts, how it processes the file, and what it produces.
↔ Swipe sideways to view every column.
| Feature | PNG | |
|---|---|---|
| Format | PNG | |
| Processing | Secure cloud processing | Secure cloud processing |
| Result | Convert PNG to PDF online for free. Keep full-resolution pixels, flatten transparency onto white, and download a clean one-page PDF in seconds securely. | Convert PNG to PDF online for free. Keep full-resolution pixels, flatten transparency onto white, and download a clean one-page PDF in seconds securely. |
Where to use files from the PNG to PDF
The output is ready for common workflows supported by its format.
- Full-resolution pixels
- Beyond flattening transparency onto white, no extra compression is applied — your PNG's pixel data is embedded at full resolution.
- Opens on any device
- The output is a standard ISO 32000 PDF that opens in any reader, browser, or built-in phone/computer viewer.
- Auto-deleted for privacy
- Uploads use encrypted HTTPS; generated PDFs are removed within 24 hours and source images within 6–24 hours.
- Simple workflow
- Choose a file, review the options, and create the result.
About the formats
PNG
PNG is a lossless raster image format created in the mid-1990s as a patent-free replacement for GIF. It is the standard choice for screenshots, logos, UI graphics, and any image that needs transparency.
PNG preserves every pixel exactly and supports a full 8-bit alpha channel, so text and sharp edges stay crisp. The downside is size: photographs saved as PNG are far larger than the same image as JPG or WebP. Support is universal in browsers and editors, making it a safe default for graphics — just avoid it for large photo collections.
PDF (Portable Document Format) is a fixed-layout document standard created by Adobe in 1993 and standardized as ISO 32000. Because a PDF renders identically on every device, operating system, and printer, it is the default format for invoices, forms, reports, and anything meant to be shared or printed.
PDF is great for sharing and printing because the layout never shifts, but it is not an image editing format — content is hard to change once the file is created. Our tools can both generate PDFs from your images (each image becomes a one-page PDF, or merge several into one multi-page PDF) and read existing PDFs back into images via pdf-to-jpg and pdf-to-png.
Privacy and file handling
This tool uses secure cloud processing for formats or operations browsers cannot handle reliably.
- Secure transfer
- Files are transferred over HTTPS and used only for the requested operation.
- Automatic deletion
- Inputs are removed within 6–24 hours and generated outputs within 24 hours.
- Private downloads
- Results are delivered with expiring signed download links.
PNG to PDF troubleshooting
- Transparent areas turned white
- That is expected: PDF pages are opaque, so PNG transparency is flattened onto the white page background. If you want a different backdrop, add a background color to the PNG before converting.
- I wanted all my PNGs in ONE PDF
- This tool creates one single-page PDF per PNG and bundles batch results in a ZIP. To combine 2 or more PNG/JPG files into one ordered, multi-page document, use images-to-pdf; it charges 1 credit per image merged.
- My PDF page has odd dimensions
- The page always equals your PNG dimensions at 1 pixel ≈ 1 point — a 1920×1080 screenshot yields a 1920×1080 pt page. There are no paper-size presets yet; resize the image first if you need specific proportions.
FAQ
- What happens to transparent areas in my PNG?
- PDF pages are opaque, so transparent pixels are flattened onto a white page background. This is expected — if you need a different color behind your graphic, add a background to the PNG before converting.
- Can I put several PNGs into one multi-page PDF?
- Yes — with a separate tool. Use images-to-pdf to merge 2 or more PNGs (or a mix of PNG and JPG) into one multi-page PDF, one page per image in upload order, for 1 credit per image merged. This png-to-pdf tool itself still converts each PNG into its own one-page PDF; batch jobs here still deliver a ZIP with one PDF per image.
- Is the conversion private?
- Yes. Files upload over an encrypted HTTPS connection, converted PDFs are automatically deleted within 24 hours, and uploaded originals are removed within 6–24 hours. We never share your files.
- What are the file size and usage limits?
- Anonymous visitors get 1 free server conversion with files up to 20 MB. A free account allows 50 MB per file, 3 conversions every 30 days, and batches of up to 5 files; paid users get 200 MB per file, batches of up to 100, and ZIP download.
- How is my PDF's page size determined?
- We use pdf-lib, a pure JavaScript PDF library with no external renderer, to build your file. It creates a page sized to your PNG's exact pixel dimensions, treating 1 pixel as 1 point, so a 1200×1600 image produces a 1200×1600 pt page — no cropping or paper-size preset is applied.
- What happens if I upload an extremely high-resolution PNG?
- Very large images are clamped to a safe ceiling of about 200 inches per side before the page is created. This keeps the PDF within dimensions every reader can open reliably; it only affects unusually huge graphics or scans, not typical screenshots or exports.
- Does converting to PDF reduce my image's quality?
- No extra recompression is applied beyond flattening transparency onto white. Your PNG's pixel data is embedded at full resolution, so the PDF looks the same as opening the PNG directly on a white background.
- Do I need special software to open the PDF?
- No. The file is a standard ISO 32000 PDF, so it opens correctly in any PDF reader, web browser, or the built-in viewer on your phone or computer — no special software required.
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Convert PNG to PDF online for free. Keep full-resolution pixels, flatten transparency onto white, and download a clean one-page PDF in seconds securely.
PNG to PDF Converter