Kwebby's PDF to PNG tool renders each page of a PDF and saves it as a PNG image. PNG is lossless, so text, tables, charts and line drawings keep clean edges with no compression blur. You drop the PDF in, the conversion starts on upload, and you download single pages or every page in one ZIP file. The work happens in your browser, so the PDF stays on your device. This guide covers how the tool renders pages, how to choose a resolution and when PNG beats JPG as the output.
Key Takeaways
- Kwebby's PDF to PNG tool is free, needs no account and saves every page of a PDF as its own PNG image.
- PNG is lossless, so small print, thin lines and flat colours stay sharp. Photo-heavy pages make larger files than JPG.
- A Quality / Scale slider sets the size from 0.5x to 3x, which is 36 to 216 DPI. The default is 1.5x, or 108 DPI.
- Pages are rendered on a white background, the way a PDF viewer shows them. The PNG files are not transparent.
- Download pages one at a time by clicking them, or click Download All as ZIP for files named page-1.png, page-2.png and so on.
- Rendering uses PDF.js in your browser, and the PDF is not uploaded.
What Is the Kwebby PDF to PNG Tool?
Kwebby's PDF to PNG tool is a free, browser-based converter that turns each page of a PDF into a PNG image. It is the PNG version of the PDF to JPG tool, with the same controls and a lossless output format.
The tool draws pages; it does not copy parts out of the file. PDF.js, an open-source PDF library from Mozilla, renders each page onto an HTML5 canvas. The canvas is then saved as a PNG. Because the tool captures what the page looks like, fonts, columns, tables and vector graphics appear as they do in a PDF reader.
Key Features and How It Works
One PNG for Every Page
Each page of the PDF becomes one PNG file. A 15 page report gives you 15 images. You can then use one slide, one chart or one table without splitting the PDF first.
Lossless Output
PNG keeps every pixel the renderer draws. JPG, by contrast, throws away detail to save space, which shows up as faint smudges around letters and lines. For pages built from text, tables and diagrams, PNG gives cleaner images. The MDN image format guide recommends PNG over JPEG for images that need exact reproduction, such as diagrams and screenshots.
Quality / Scale Setting
The slider runs from 0.5x to 3x in steps of 0.5:
| Scale | Resolution | Good for |
|---|---|---|
| 0.5x to 1x | 36 to 72 DPI | Thumbnails and quick previews |
| 1.5x (default) | 108 DPI | Reading on screen, chat and email |
| 2x | 144 DPI | Slides, documents and web pages |
| 2.5x to 3x | 180 to 216 DPI | Zooming in, small print, printing |
A higher scale draws more pixels per page, which means sharper detail and larger files. Set the slider before you upload. To change the scale for a file you already converted, upload it again.
White Page Background
PDF.js paints a white background before it draws each page. The PNG files therefore have an opaque white background, not a transparent one. That matches how the page looks in any PDF reader.
Download One or All
The converted pages show as thumbnails. Click a thumbnail to save that page as page-N.png. Click Download All as ZIP to get every page in one ZIP file, named after your PDF, for example report-png.zip. One ZIP avoids the blocked multiple downloads that many browsers show.
Why Convert PDF to PNG?
A PDF page often needs to live somewhere that accepts only images. PNG is the better image choice when the page is mostly text or graphics:
- Slides and documents: insert a page into a presentation or a Word file as a crisp image.
- Websites and help centres: publish a page preview or a diagram without a PDF viewer.
- Design and editing work: open a page in an image editor without JPG artifacts in the way.
- Charts and technical drawings: keep thin lines and small labels readable.
- Social posts and chat: share a single page as an image.
How to Use the PDF to PNG Tool
- Set the Quality / Scale slider. Leave it at 1.5x for screen use, or raise it for print and zoom.
- Click the upload area or drag a PDF onto it. The area reads "Click or drag a PDF here".
- Wait for the progress bar. The tool renders each page in your browser and shows the percentage done.
- Click a thumbnail to save one page, or click Download All as ZIP to save every page.
Best Practices for PDF to PNG Conversion
Choose PNG or JPG by Page Content
Use PNG for pages of text, tables, charts, line art and screenshots. Use PDF to JPG for pages that are mostly photographs. A full-page photo saved as PNG can be several times the size of the same page as a JPG, with no visible gain.
Keep the Scale as Low as the Job Allows
The pixel count grows with the square of the scale. A 3x page has four times the pixels of a 1.5x page, so it needs more memory and makes a larger file. For long documents, start at 1.5x or 2x, and raise the scale only for pages that need it.
Convert Only the Pages You Need
Every page is rendered, so a 300 page PDF produces 300 PNG files and takes time and memory. Cut the range you need with Split PDF, then convert the shorter file.
Unlock Protected PDFs First
The tool cannot open a password-protected PDF. Remove the password with the software that created the file, then convert it.
Use the Right Tool for Text or Embedded Pictures
A PNG of a page is a picture, so its text cannot be selected. To get the words, use PDF to Text. To get a PNG of each page with blank pages skipped and a crop option for charts or photos, use Extract PDF Images.
Shrink the Images After Converting
If the PNG files are too large for an upload form, run them through Image Optimizer. It can keep PNG output or switch to JPEG or WebP at a quality level you choose.
Common Use Cases
- Presentation slides: export one page of a report as a sharp image for a slide.
- Documentation: turn a page of a manual into an image for a help article.
- Web previews: make a PNG of a PDF cover for a download page.
- Architecture and engineering drawings: keep thin lines readable when sharing a sheet as an image.
- Social media: post an infographic or a flyer page as an image.
- OCR preparation: feed a clean PNG page into PNG to Text.
Related Kwebby Tools
- PDF to JPG exports pages as smaller JPG images for photo-heavy PDFs.
- PNG to PDF turns PNG images back into a PDF.
- Extract PDF Images saves pages as PNG, skips blank pages and lets you crop.
- Split PDF cuts out the pages you need before converting.
- PDF to Text pulls the selectable text from a PDF.
- Image Optimizer reduces the size of the PNG files after export.
- PNG to Text reads text from a PNG page with OCR.
Frequently Asked Questions (FAQs)
How do I convert a PDF to PNG?
Open Kwebby's PDF to PNG tool, set the Quality / Scale slider and upload your PDF. The conversion starts on upload. Click a page to save it as a PNG, or click Download All as ZIP.
Can I convert all PDF pages to PNG at once?
Yes. The tool renders every page. Download All as ZIP saves them in one file, named page-1.png, page-2.png and so on.
Is PDF to PNG better than PDF to JPG?
PNG is better for text, tables, charts and diagrams, because it is lossless and keeps edges sharp. JPG makes smaller files and suits pages that are mostly photographs.
What resolution are the PNG images?
The slider sets 36 to 216 DPI. The default 1.5x gives 108 DPI. Choose 2x (144 DPI) or higher for printing or zooming in.
Do the PNG files have a transparent background?
No. Pages are rendered on a white background, as in a PDF reader, so each PNG has a white background.
Is my PDF uploaded to a server?
No. PDF.js renders the pages in your browser, and the file stays on your device. The tool is free and needs no account.
Final Thoughts
PDF to PNG is the best route when a page holds text, charts or drawings that must stay sharp. Pick a scale that fits the job, convert only the pages you need and save them one by one or as a ZIP. For photo-heavy pages, switch to PDF to JPG to keep the files small, and explore the PDF tools hub for the next step.