Email gateways and government portals do not care that your scan is “high quality.” They care that the attachment is 4.8MB, not 26MB. ToolPin Compress PDF exists for that mismatch. You drop a bulky PDF in the browser, wait while the tab rewrites it, and download a smaller file. The original never leaves your device. There is no signup, no watermark, and a typical 250MB ceiling.
Compression is not merge, split, or convert. It aims to keep the same pages and the same reading order while throwing away bulk you do not need: oversized embedded images, redundant streams, and scan resolution far above what a screen or a cheap laser printer will show. Text-heavy PDFs that were born digital (exported from Word or LaTeX) often shrink only a little, because they were already compact. The wins are almost always in scanned papers, photographed whiteboards, and slide decks exported with full-resolution photos on every slide.
Know the destination before you chase the smallest possible file. A 2MB court upload field is less forgiving than a 25MB university LMS. Compress until you are under the cap, then stop. A second or third pass can help when the first pass still leaves fat images, but each pass can soften photographs. Open a page with small print and a page with a photo after you download. If a signature looks muddy or a table’s rules vanish, you went too far—keep the previous version.
If the PDF is large because it contains pages you do not need, compression is the wrong first step. Delete blank backs, duplicate scans, and unused annexures, then compress what remains. Ten discarded pages save more than a heroic compress of pages nobody will read. If you only need three pages from a 90-page scan, extract those three and compress the extract. Do not compress the whole book “just in case.”
Local processing means your device does the work. A 200MB scan of a bound register will make the tab work hard. Close other heavy tabs, keep the laptop plugged in, and be patient. If the browser runs out of memory, split the scan into two ranges, compress each half, then merge the halves. That path is slower to describe than “one click,” but it finishes on machines that cannot hold the whole file in RAM at once.
Scans from phone apps are a common culprit. A 12-megapixel photo of each A4 page, wrapped in a PDF, is a 40MB “document” that looks no sharper in Gmail than an 8MB version. Compress those. Conversely, do not expect miracles from a PDF that is already 400KB of selectable text. If a portal still rejects a small text PDF, the problem is usually format or password protection, not size.
ToolPin does not keep your file and does not add a logo to the cover. Download the result, rename it with the purpose (affidavit-compressed.pdf), and keep the original until the portal shows a green tick. If the upload fails for reasons other than size, you still have the uncompressed master. Compression is free to repeat on toolpin.online whenever the next form announces a new megabyte cap.