Why is PNG larger than JPG?

PNG is lossless — every pixel is preserved exactly. JPG throws away information to shrink files. For photographic scans the PNG is often several times bigger than the equivalent JPG.

Will text in the PNG be selectable?

No. PNG is a raster format, so text becomes pixels. Use the Extract Text tool if you need the words as plain text, or keep the original PDF for searchable text.

Can I export only specific pages?

Not directly — every page is converted. Use the Split tool first to extract the pages you want, then run PDF to PNG on the smaller PDF.

Is this PDF toolkit free?

Yes. folio is free to use, no account is required, and there are no paid plans.

Are my PDFs uploaded to a server?

No. folio runs entirely in your browser. Your PDFs are never uploaded, never seen by our infrastructure, and never stored anywhere outside your device. When you close the tab, every file is gone.

Which operations are supported?

Merge PDFs, split a PDF into ranges, compress a PDF, convert PDF pages to JPG or PNG, build a PDF from images, rotate all or selected pages, add a watermark, and extract plain text. All of this happens in your browser.

Is there a file size limit?

Yes. Each file may be up to 100 MB. Browser memory is the real ceiling — very large scanned PDFs may struggle on lower-end devices.

Can I work with multiple PDFs at once?

Yes. Merge and Images→PDF accept up to 20 files in a single batch. Split, Compress, Rotate, Watermark and Extract Text take one PDF at a time.

Will my converted images / PDFs lose quality?

Compress and PDF→JPG/PNG re-render pages at the DPI/quality you pick, so there is a small generational loss like any image re-encode. Merge, Split, Rotate, Watermark and Extract Text do not re-render — they only edit the existing PDF objects, so quality is preserved.

Can folio open password-protected PDFs?

Not yet. If your PDF requires a password to open, please unlock it first in a dedicated app. We deliberately skip password handling to keep folio fully client-side and free of legal grey areas.

Not in this version. Extract Text only works for PDFs that already have selectable text. Scanned image-only PDFs need OCR, which is a separate, much heavier project we may add later.

Why does the first PDF→Image take a moment?

When you first use an operation that renders PDF pages (PDF→JPG, PDF→PNG, or split previews), folio downloads the rendering engine (~1 MB). After that it stays cached and subsequent operations start immediately.

Are ads required to use the tool?

No. Ads are isolated from the converter. The tool works completely even if ads fail to load or are blocked.

PDF → PNG per page

Convert PDF to PNG

PNG is the lossless choice — perfect for screenshots, diagrams, and anything with crisp edges. Drop a PDF below and folio renders every page as a PNG image inside your browser.

Drop your PDF here

Each page becomes a PNG image

Choose PDF

PDF

Upload a file to start.

One PDF up to 100 MB. PNG pages bundled into a ZIP when there are more than one.

Every operation runs entirely in your browser. Your files never leave your device.

About PDF to PNG

When should I choose PNG over JPG?

Pick PNG when your PDF contains sharp text, line art, or screenshots where compression artifacts would be visible. JPG gives smaller files for photographic content; PNG is bigger but pixel-perfect.

What DPI do I need?

150 DPI matches most screen reading. Go to 200+ if you plan to print; 96 is fine for web thumbnails. PNG has no quality slider — it's always lossless.

Will text be selectable in the PNG?

No. PNG is a raster format, so text becomes pixels. Use Extract Text if you need the copy-able words, or just keep the original PDF for searchable text.

About this operation

PDF → PNG

What it does

folio renders every PDF page to a canvas via pdf.js and writes it as a PNG — lossless, sharp at any zoom, perfect for screenshots, line art, diagrams and anything with hard edges. Multi-page PDFs return as a ZIP. PNG has no quality slider because it is always lossless; the only knob is DPI (50–200), where 150 matches typical screen viewing and 200+ is print-ready.

When to use it

Export presentation slides for embedding in docs
Pull screenshots out of a report for re-use
Generate sharp reference images of a diagram-heavy PDF
Print-quality conversion when JPG artefacts are not acceptable

Limitations — what it doesn't do

Lossless = larger files than JPG, especially for photographs
No way to pick specific pages — every page is rendered (use Split first)
Cannot decode password-protected PDFs
Multi-page output always comes back as a ZIP, not loose files

Every tool runs entirely in your browser.

Frequently asked questions

Your PDFs never leave your device

folio is a static page. Every operation runs inside your browser via pdf-lib (edit) and pdfjs (render). There is no server-side processing, no upload, no temporary file, no cache. When you close this tab, every file is gone.

No account required.
No server processing. Your PDFs stay on your device.
No caching, no Service Worker, no IndexedDB persistence.
pdfjs-dist (lazy-loaded for rendering) is fetched from your own origin; nothing else is sent.