How do I convert only specific pages of a PDF to JPG?
After uploading your PDF, PurePDF displays thumbnail previews of all pages. By default all pages are selected. Click any thumbnail to deselect it — the page will appear dimmed to indicate it is excluded. Click it again to re-select it. Only the selected (bright) pages will be rendered and converted. This gives you precise control over which pages end up as JPG images without needing to split the PDF first.
What resolution options are available for PDF to JPG conversion?
PurePDF offers a Resolution slider that controls the render scale. The default setting is 2× (144 DPI), which produces images at twice the PDF's nominal 72 DPI baseline — suitable for screen viewing, email, and web use. The 3× setting (216 DPI) is good for detailed documents like technical drawings. The 4× setting (288 DPI) produces near-print-quality images ideal for archival use or professional printing. Higher resolution settings increase both output image size and conversion time.
Are my PDF files uploaded to any server during conversion?
No. PurePDF uses PDF.js — Mozilla's open-source PDF renderer — to render your PDF pages entirely in your browser. Your PDF is loaded into memory locally, each page is rendered to a canvas element at your chosen resolution, and the canvas data is saved as a JPEG file. At no point is your file transmitted to a remote server. You can run PurePDF fully offline after the initial page load, and no file data ever leaves your device.
What is the quality difference between JPG, PNG, and WebP output formats?
JPG is lossy and best suited for photographs, scanned documents, and pages with complex graphics — it produces small file sizes with good visual quality. PNG is lossless and ideal for pages with crisp text, diagrams, or charts where sharpness must be preserved exactly. WebP offers the best compression efficiency, producing files 20–30% smaller than JPG at comparable quality, making it ideal for web use. If you need to archive PDF pages for future editing or printing, PNG is recommended. For sharing or embedding on websites, WebP or JPG are better choices.
Can I convert a multi-page PDF into a ZIP of individual JPG images?
Yes. When you convert multiple pages, PurePDF automatically offers a ZIP download button in addition to individual per-page download buttons. The ZIP archive contains one JPG file per page, named sequentially. This makes it convenient to download all pages at once without clicking through each one individually. The ZIP is created entirely in your browser using the JSZip library — no server is involved.
Does converting a PDF to JPG preserve the text sharpness?
Text sharpness in the output JPG depends primarily on the resolution setting you choose. At 2× (144 DPI) the text is readable and suitable for screen use. At 4× (288 DPI) the text is noticeably sharper and more suitable for print or detailed inspection. Keep in mind that JPEG compression introduces subtle artifacts around high-contrast edges like text strokes — if text sharpness is critical, consider using the PDF to PNG option instead, which is lossless and preserves sharp edges exactly.
What is the maximum PDF file size I can convert?
The practical limit is determined by your device's available browser memory rather than any server-side restriction. PurePDF can typically handle PDF files up to 100–200 MB on a modern desktop computer. Very large PDFs — for example, a 500-page report — may require significant memory when rendering all pages at high resolution. If you experience slowdowns or browser crashes with very large PDFs, try converting a subset of pages at a time, or reduce the resolution setting to lower memory usage.
Does PurePDF support password-protected PDFs?
Currently PurePDF does not support encrypted or password-protected PDFs. If you try to open a protected PDF, the PDF.js renderer will prompt for a password, but the tool does not handle the decryption flow. To convert a password-protected PDF, first remove the password protection using PurePDF's Encrypt PDF tool (which can also decrypt) or another tool, then upload the unlocked file for image conversion.
How does PurePDF handle PDFs with mixed orientations?
PurePDF handles each page independently during rendering. If your PDF contains a mix of portrait and landscape pages, each page is rendered at its own natural orientation and dimensions. The resulting JPG images will each have the correct dimensions for their respective page — portrait pages produce taller images and landscape pages produce wider images. No rotation or cropping is applied automatically, so the output faithfully reflects each page as it appears in the original PDF.
Can I convert a single-page PDF to JPG?
Yes. Single-page PDFs work exactly the same as multi-page ones — you simply get one JPG file as output. This is a common use case for converting PDF invoices, certificates, or report covers into image format for use in presentations or as email attachments. The process is the same: upload the PDF, verify the page thumbnail looks correct, choose your resolution, and click Convert. The download will be a single JPG file.