Codxing

PDF Hub

Merge, split, rotate, convert and label PDFs — without uploading them.

Merge PDFsCombine several PDFs into one, in the order you choose.Split / Extract PagesPull a page range out into its own PDF.Delete PagesDrop the pages you do not want and keep the rest.Rotate PagesTurn some or all pages 90°, 180° or 270°.Images to PDFTurn JPGs and PNGs into a single PDF, one image per page.PDF to ImagesRender every page as a PNG at the resolution you pick.Extract TextPull the text layer out of a PDF and copy or save it.Add Page NumbersStamp numbers in the corner or centre of every page.WatermarkLay text across every page at the angle and opacity you want.Sign PDFDraw a signature and place it anywhere on the page.Invoice GeneratorFill a form, get a clean invoice PDF with totals and tax.Info & MetadataInspect page count and properties, and rewrite title or author.

About the PDF Hub

Almost every free PDF site works the same way: you upload your document to their server, they process it there, and you download the result — with a daily limit of two files and an upsell waiting at the third. This PDF Hub does the work in your browser instead, using pdf-lib for writing and Mozilla’s pdf.js for reading. Your contract, medical record or passport scan never leaves your device, there is no queue, no file-size ceiling set by a server, and no watermark on anything you produce.

Questions

Are my PDFs really not uploaded?

Correct. Codxing is a static site with no backend — there is no server that could receive a file. You can verify it: open your browser devtools, go to the Network tab, and use any tool. No upload request appears.

Is there a file size limit?

None imposed by us. The limit is your device memory. Documents of a few hundred pages are fine on any modern laptop; very large scanned files may be slow on an old phone.

Can these tools open password-protected PDFs?

No. Encrypted PDFs need to be unlocked in the application that created them first. pdf-lib cannot decrypt, and it cannot add encryption either — so the Watermark tool marks a page visually but does not lock the file.

Why does Extract Text return nothing for my document?

Because it is a scan — a photograph of text rather than text itself. Pulling words out of an image requires OCR, which is not included here.