Converting a PDF longer than 100 pages — the cap and how to work with it

2026-11-02

You dropped in a 240-page manual, the pages started appearing one by one, and then they stopped at 100. No error, no paywall — just a note on the first page. Here is what the limit is, why it exists, and how to get the other 140 pages.

What happens with a long PDF

Our PDF to PNG converter opens the PDF in your browser and draws each page, in order, as an image. For a document longer than 100 pages it draws the first 100 and stops. The first page in the list carries a note saying so: PDF page 1 of 100 — only the first 100 pages were unfolded. Every other page is labelled with its own number, so you can see exactly where the run ended.

Nothing about this is an account limit. There's no account, no upload and no premium tier — the cap is a guard for your device.

Why a cap at all

All the work happens on your machine. Each page is drawn at twice its nominal size — about 144 dots per inch — so text stays sharp; an A4 page becomes an image of roughly 1191×1684 pixels. While a page is being drawn, it occupies several megabytes of memory as raw pixels, and every finished page stays in memory as an image file, plus its converted result, until you download or clear the list.

A few dozen pages is comfortable on any modern device. Several hundred, held at once in a browser tab, is where tabs on phones and older laptops start running out of memory and crashing — taking the pages already done with them. Stopping at 100 keeps a long conversion from failing all at once. For the same reason, a single unusually large page (a poster, an engineering drawing) is drawn at a reduced scale if doubling it would pass about 25 megapixels.

Converting the rest: split, then convert in parts

1. Split the PDF into parts of 100 pages or fewer. Any PDF tool you already use can extract a page range. Many browsers can too: open the PDF, print, choose a page range such as 101–200, and pick the save-as-PDF destination instead of a printer.
2. Convert one part at a time. Drop in the first part, wait for the pages, use Download all to get a ZIP, then Clear the list before the next part. Dropping all parts in at once is allowed — the cap applies per file — but it puts all those pages in memory together, which defeats the purpose.
3. Rename the ZIPs as you go. Every download is called pixelsquish_images.zip, so your browser will add (1), (2) and so on. Renaming each to its page range saves confusion later.

How the page files are named

Pages are named after the PDF with the page number added: manual.pdf gives manual-1_conv.png, manual-2_conv.png and so on. In a split part the numbering restarts from 1, which is another reason to name the ZIPs by range. One catch: if the PDF's name contains accented or non-Latin characters, the pages are named image with a number for their position in the ZIP instead — the order is still right, but the page-number labels from the original name are gone. Renaming the PDF to plain English letters first keeps them.

Do you need every page as an image?

Often you need ten, not two hundred. If so, extract just those pages first and convert a small PDF — it's faster, and the result is easier to handle. PNG suits text pages; if you need smaller files for photo-heavy pages, PDF to JPG uses the same renderer.

Password-protected PDFs are a separate issue: the renderer doesn't ask for a password, so save an unlocked copy in your own PDF reader first.

What we deliberately don't do

We don't send long PDFs to a server to get around the cap. A server could convert a thousand pages, but only by receiving your document — and the documents people convert are contracts, statements and manuals they would rather keep to themselves.

The short version

• Up to 100 pages per PDF are converted; the first page's note tells you when it stopped.
• The cap protects your device's memory — there is no paid tier.
• Split long PDFs into parts of 100 pages or fewer and convert one part at a time.
• Keep the PDF's name in plain ASCII if you want page-numbered filenames.