Check which kind of signature the recipient needs
Read the recipient’s instructions before editing the file. A request for a visible handwritten mark is different from a request for a certificate-based digital signature. If a certificate, signing portal, or specific identity workflow is required, use that process. Adding an image does not create a certificate signature or its validation information.
Keep the original PDF unchanged. Open it and check that its pages, orientation, and signature area are correct. If the document is already certificate-signed or has editing restrictions, do not try to bypass them. Paperkiss currently detects signed or restricted PDFs and prevents its editing workflow for those files; acceptance checks for real-world files remain part of development.
Prepare a reusable signature before placing it
Use a signature you are entitled to apply. You can photograph it on plain paper, draw it, or type a name in a suitable style. For a photograph, remove the surrounding paper while preserving the original strokes. A transparent PNG is a useful reusable asset; a white JPG rectangle can cover the document’s printed line.
Paperkiss is a local Windows app in development, with document signing and photo preparation as separate entry points. Its implemented library can keep prepared signatures and stamps for later insertion. Save a recognizable item name, then inspect the asset on light and dark backgrounds before placing it. These instructions describe the developing product, not an app available to download today.
Place and size the mark on the correct page
Open the document, navigate to the intended page, and insert your prepared artwork. Position it within the designated signature area without covering a printed name, checkbox, or nearby date. Resize proportionally so the handwriting keeps its shape. A signature that fits its box should still have readable fine strokes at the page’s normal viewing size.
The current editor provides placement properties in millimetres, inches, or points, together with rotation, opacity, and linked proportions. Use those controls for a deliberate adjustment rather than stretching the signature to fill every available space. Check the page after a rotation change: the visible ink can approach an edge even when the original placement seemed comfortably inside it.
Add a date only when the form asks for one
If the form needs a date, select the intended calendar date and verify the displayed format before applying it. Numeric dates can be ambiguous: 04/11/2026 and 11/04/2026 may mean different days to different readers. Match the requested format instead of relying on the language of your Windows installation.
Save a draft if you want to resume editing later. In the implemented Paperkiss workflow, draft creation is an explicit choice; later edits to a saved draft autosave. The draft includes a local copy of the source and placed elements. Export is a separate action and does not replace the editable draft. Keep the document open until any save has completed.
Export a new PDF and reopen that exact file
Choose PDF for the completed document and a new filename, such as “agreement-signed-copy.pdf”. Avoid printing the pages to images merely to add the signature: that changes the document representation and creates a different review task. Paperkiss PDF export inserts visible artwork into a copy of the PDF rather than making certificate claims.
Reopen the exported file from its actual saved location. Check the signature page, the page count, and any text near the mark. If the original had searchable text, try selecting a short phrase as an additional check; do not mistake a searchable original for searchable newly placed handwriting. Send the reviewed output, not the source photo or a draft backup. Retain the original and your working draft separately.
Questions and answers
Does inserting a signature image digitally certify the PDF?
No. Certificate-based signing uses a digital ID and cryptographic validation. A visible image is page artwork and does not provide those mechanisms.
Can I finish without saving a draft?
The implemented workflow allows a session-only edit and a separate export. Save a draft explicitly if you want an editable project to reopen later.
Should I send PNG or PDF to the recipient?
For a completed PDF form, send the reviewed PDF unless the recipient asks for something else. PNG is usually the reusable signature asset, not the completed multipage document.