PDF to Image

A PDF page can hold sharp text, vector charts and photos all at once. A raster image, such as a JPG or PNG, has to turn all of that into a fixed grid of pixels. The converter does this by rendering the page, much as a PDF viewer draws it on your screen, and then saving the rendered pixels in the format you picked. Which format is best depends on what is on the page and where the picture is going.

PNG is lossless, so letters, thin rules and table borders keep clean edges. It is the natural choice for documents, forms, diagrams and anything with a lot of text. JPG discards some detail to make a smaller file. On photo-heavy pages, such as a brochure or a scanned picture, the loss is hard to spot; on text pages it can leave faint halos around letters, especially at low quality. WebP can be either lossy or lossless and makes smaller files for websites, though some older programs still do not open it.

The remaining formats serve narrower needs. TIFF is common in archives, scanning workflows and fax systems, and it can hold every page in one file. BMP is uncompressed and only worth choosing when an old program asks for it. GIF is limited to 256 colors per image, which is fine for simple diagrams but poor for photos. SVG and EPS are vector formats: text and lines stay as shapes that scale without blurring, which makes them the right choice for logos, charts and technical drawings you want to reuse in a design tool.

In short: choose PNG for pages with text, tables or line drawings, JPG for pages that are mostly photographs or when an upload form caps the file size, and SVG when a chart or logo must stay sharp at any size. Avoid GIF for photos, where the color limit causes banding, and avoid very low JPG quality for scanned text, where blocky patches make small print hard to read.

PDF pages are measured in physical units, not pixels, so the converter needs to know how many pixels to draw for each inch of paper. That number is the resolution, set in dots per inch. The pixel size of each image follows directly from it: page width in inches times dpi. An A4 page, 210 by 297 millimeters, comes out at 2480 by 3508 pixels at 300 dpi, as the highlighted row of the table shows, and at half that in each direction at 150 dpi.

Higher resolution means more detail and bigger files. The file size grows roughly with the square of the dpi, because doubling the resolution doubles both the width and the height. For reading on a screen, 150 dpi is usually plenty and is the default. For printing, or for pages with fine print that people will zoom into, 300 dpi is the common choice. The setting goes from 36 to 600 dpi; values at the top end are mainly useful for detailed maps, plans or artwork.

One limit is worth knowing. Rendering a scanned page at a higher resolution than it was scanned at does not add detail. If a page was captured at 200 dpi, exporting it at 600 dpi makes a larger image that looks no sharper. When you do not know how a file was made, try 150 or 200 dpi first and only go higher if small text looks rough.

If an upload form gives a limit in pixels rather than dpi, work backwards from the table. A form that wants images no wider than about 1,240 pixels for an A4 page is asking for roughly 150 dpi; one that expects print-ready files is closer to the 300 dpi values shown. When the form limits file size instead, JPG at a moderate dpi is usually the quickest way to fit.

Page selection. Convert every page, only the first page, or a list of pages and ranges such as 1-3, 5. Color mode. Keep full color, switch to grayscale, or produce pure black and white, which suits text scans and makes very small files.

Transparent background. Leave the white page area see-through in formats that support transparency, so the content can sit on any background. Quality. Applies to JPG and lossy WebP. The default of 85 keeps text crisp; lower it only when the files are too large.

Text to outlines. For SVG output, draw letters as shapes so the file looks right even on a computer without the original fonts. ZIP or single files. Get one ZIP with the pages numbered in order, separate downloads, or one multi-page TIFF.

Selecting pages before converting saves time and download size. A thumbnail for a website or a cover image for a listing usually needs only the first page. A single chart from a long report needs only the page it sits on. If you need the selected pages as a PDF rather than as pictures, cut them out with Split PDF instead.

Black and white mode is useful for scanned paperwork: every pixel becomes either black or white, which prints cleanly and produces very small PNG or TIFF files. Grayscale keeps shades, so it suits pages with photos or shaded charts. If you want the result to stay a PDF, but without color, the PDF to Grayscale tool does that without turning the pages into images.

When several PDFs go into one batch, each document gets its own set of numbered images, and the ZIP keeps them apart by file name. The settings apply to every file, so convert a document separately if it needs a different format or resolution from the rest.

Many places accept pictures but not PDFs. Social networks and messaging apps show images inline, while a PDF arrives as an attachment that people have to open. Some upload forms, especially for identity documents, certificates or proof of address, ask for a JPG or PNG. Slides and documents also accept images more gracefully than embedded PDF pages, and a picture of a page is easy to crop or annotate in any photo editor.

Images are also a simple way to share a page without sharing the document behind it. Converting removes hidden text, form fields, links and metadata, because only the visible pixels are kept. That makes images a quick choice for posting a single page publicly. For keeping the document itself but making it uneditable, look at Flatten PDF instead, which keeps the file as a PDF.

Designers often take the vector route. Exporting a page as SVG or EPS keeps a chart, a floor plan or a logo editable in an illustration program, where each line and shape can be changed or recolored without the blur that comes from enlarging a pixel image.

Going the other way, from pictures back to a single document, is handled by the Image to PDF tool. That is useful when you edited a few page images and want to send them as one file again.