File Preparation Articles, Page 2
Practical guides for compressing PDFs and photos, ID photos, and portal upload rules. The current portal rule is always the final authority.
Showing articles 10 to 18 of 41, newest first. Page 2 of 5.
How to compress a PDF to a specific size (any KB limit)
Type your own limit, read the exact bytes, and know in advance when a target is out of reach. Six custom targets measured on two synthetic scans.
How to Compress a PDF to 2MB, With Live Test Results
Pick 2 MB in the target menu, compress, and check the byte count before you download. We pushed six synthetic PDFs through the live tool on 22 October 2026, from a one-page certificate to a 60-page scan bundle. Here is what each one turned into.
How to Compress a PDF to 300KB, With Live Test Results
Type 300 in the custom target box, compress, and read the byte count before you download. We ran four synthetic PDFs through the live tool on 21 October 2026, and one of them did not fit. Here is what happened and why.
How to Compress an Image to 50KB for Online Forms, With Real Test Results
Type 50 in the custom target box, compress, and read the result before you download. We ran three synthetic files through the live tool on 21 October 2026 and report the exact bytes, pixels and quality it produced.
How to Compress PDF on iPhone and Android, From Files to the Upload Form
The whole job fits in one browser tab on your phone: pick the PDF, choose the size the form allows, download, find the new file and upload it. We ran the live tool at phone width on 19 October 2026 and measured every result.
How to Compress PDF Without Losing Quality, and What Really Gets Lost
No browser compressor keeps every detail. We measured what Dokurapi keeps and what it drops, with zoomed crops of small print, a signature and a stamp, so you can judge your own file.
How to Scan a Document to PDF with Your Phone Camera
No scanner? A phone camera and a browser are enough for most upload forms. We photographed a synthetic three-page paper form, turned it into a PDF with the live tool, and measured what changed when we compressed first.
How to Combine Images into One PDF, in Order and Under the Limit
Forms often want one PDF made from several photos: both sides of a certificate, a receipt, a transfer screenshot. We combined four test images in the live tool on 16 October 2026 and measured the result two ways.
How to Compress PNG Files for Upload Forms, and When Not To
A PNG can be huge or tiny depending on what is in it. We put a photo-like PNG, a text screenshot and a transparent logo through the live tool on 16 October 2026 and measured every downloaded file.
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