Is this PDF signer really free?

Yes. 100% free forever — no trial, no premium tier, no per-signature charge, no daily quota. Sign as many PDFs as you want. Ad-supported so it stays free for everyone. Unlike Adobe Acrobat (which gates cryptographic signatures behind a $15/mo subscription), Smallpdf (2 signatures / day free), and iLovePDF (free tier limited) — we give you everything on the free tier.

Do I need an account?

No. No signup, no login, no email, no captcha, no credit card. Open the page, drop your PDF, sign, download.

Is my PDF uploaded to a server?

No. The entire signing happens locally in your browser using the Web Crypto API for RSA keypair generation and PKCS#7 / CMS packaging. Your PDF never leaves your device — there is no server-side copy because we don't have a server for your files.

Is my signature or private key sent anywhere?

No. Your signature image, drawing, or typed name stays in browser memory. If you upload a .p12 / .pfx certificate, it's parsed locally — never transmitted. The generated private key for self-signed certs lives in Web Crypto's non-extractable storage and is discarded when you close the tab.

What's the difference between an electronic signature and a digital signature?

An electronic signature is any visible mark placed on a document — a drawn scribble, a typed name, a photo of a handwritten signature. It looks like a signature but has no cryptographic proof. A digital signature is a cryptographic operation: the document's content is hashed (SHA-256), the hash is encrypted with your private key (RSA-2048), and the result is embedded in a PKCS#7 / CMS structure inside the PDF. Anyone can verify two things from that: (a) the document hasn't been modified since signing, and (b) it was signed by the holder of the corresponding private key. Most legal jurisdictions (EU eIDAS, US ESIGN, most of Asia) recognise digital signatures as legally equivalent to wet-ink signatures; electronic-only signatures sit on weaker footing. Our tool does both — visible AND cryptographic — in a single signing pass, which is what Adobe Acrobat Pro also does, but for free.

How do I sign a PDF for free?

Drop your PDF on the page above. The editor opens with the Certify modal pre-selected. Choose draw / type / upload for a visible signature, then click the page where it should go. Click Save — the PDF is cryptographically signed with your in-browser-generated certificate and downloads. Entirely free, entirely local, no signup. Most competitors gate either the crypto or the no-watermark output; we don't.

How do I add a signature to a PDF?

Same flow. Drop PDF, pick how to produce the signature (draw / type / upload a PNG or JPG of your signature), place it by clicking the page. Our visible signature renders at the exact pixel position you click, with the size you drag to, so it lines up with the signature line on contracts, NDAs, tax forms, etc.

Are PDF signatures legally binding?

In most jurisdictions, yes, with nuance. The EU's eIDAS regulation recognises three tiers: Simple Electronic Signature (SES — e.g. a typed name, accepted but weaker), Advanced Electronic Signature (AES — uniquely identifies the signer, our cryptographic output qualifies), and Qualified Electronic Signature (QES — requires a trust-service-provider-issued certificate, not produced by our tool). The US ESIGN Act (2000) and UETA treat most electronic signatures as legally equivalent to wet-ink. High-stakes contexts (notarised deeds, some courts) may require QES or physical signatures — consult a lawyer if the stakes warrant it. For everyday business use (contracts, NDAs, HR forms, vendor agreements), our cryptographic output is usually sufficient.

What is PKCS#7 / CMS?

PKCS#7 (Public Key Cryptography Standards #7), also known as CMS (Cryptographic Message Syntax), is the standard encoding for digitally signed data that every major PDF viewer understands. When you sign a PDF through our tool, we compute a SHA-256 hash of the document's byte range, encrypt the hash with your RSA-2048 private key, and package the result along with your certificate into a PKCS#7 structure. That blob is embedded inside the PDF's /Sig field. Adobe, Chrome, Edge, Foxit, and macOS Preview all read PKCS#7 signatures natively and show a verification badge — the exact same mechanism Adobe Acrobat Pro and DocuSign use.

Do the signed PDFs work in Adobe Acrobat?

Yes. Our PKCS#7 output is standards-compliant — we tested against Adobe Acrobat Reader DC, Adobe Acrobat Pro, Chrome's built-in PDF viewer, Edge, Firefox's PDF.js, macOS Preview, and Foxit Reader. All show a verification badge. For self-signed certificates (generated in-browser), Adobe shows yellow 'signer unknown' warning — this is the correct behaviour, because self-signed certs have no third-party trust anchor. To get a green badge, upload a .p12 from a trusted Certificate Authority (Digicert, Sectigo, GlobalSign, your organisation's internal PKI).

How do I sign a PDF with a .p12 / .pfx certificate?

In the Certify modal, click 'Use existing certificate'. Upload your .p12 or .pfx file, enter the password if it has one. The certificate is parsed locally — both the public and private key stay in browser memory and are used only for this signing pass. The signed PDF carries your real identity (issuer, subject, validity dates) which any verifier can check against the issuing CA's root store.

What if I just want a visible signature without the crypto?

Pick the 'Visible only' option in the Certify modal. You get a PDF with your drawn / typed / uploaded signature placed on the page — no cryptographic structure, no PKCS#7 embedding. This is equivalent to what iLovePDF and Smallpdf produce on their free tiers. It's legally weaker (just an electronic signature, not an advanced one) but fine for casual use where the other party doesn't need cryptographic proof.

Can multiple people sign the same PDF?

Yes, sequentially. Sign once and download. The recipient opens the signed PDF in our tool, drops it in, and signs again. PDF's byte-range mechanism supports any number of sequential signatures; each new signature covers a byte range that includes the previous signatures, producing a chain of verifiable signatures. (Concurrent multi-party signing — one PDF sent to five people at once — requires workflow software like DocuSign or Adobe Sign; we're a single-user tool, not a workflow orchestrator.)

Does it work offline?

Yes, once the page has loaded. The signing engine runs entirely in your browser — you can disconnect from the internet and keep signing. Great for sensitive documents (NDAs, medical releases, financial agreements) you'd rather process without any network connection active.

Can I sign a PDF on my phone?

Yes. Open the page on your phone's browser, tap Select PDF, tap Draw and trace your signature with your finger on the touchscreen, tap Save. Works on iPhone Safari, iPad, Android Chrome. Touch signing feels natural on iPad Pro with Apple Pencil — comparable to DocuSign's mobile experience but without the subscription.

Can I sign a password-protected PDF?

If the PDF is owner-locked (opens without a password), yes. If it requires a password to open, unlock it first with our /unlock-pdf tool, then sign. Our unlocker is also 100% local — the password never leaves your device.

What about timestamped signatures (RFC 3161 TSA)?

Timestamped signatures add a trusted-time-server stamp to prove WHEN a document was signed, independent of the signer's system clock. They require a network call to an external TSA (Time Stamping Authority) — which breaks our local-only promise. We don't ship timestamping today. If you need it for legal archival / long-term validation (LTV), our tool isn't the right fit; use Adobe Acrobat Pro or a commercial e-signing service. For 99% of personal and small-business signing, non-timestamped signatures plus the date field we embed are sufficient.

Is this the best free PDF signer?

For privacy-first workflows where you don't want your PDF, signature, or private key to touch a server, and where you want cryptographic signatures on the free tier (not gated behind Adobe's $15/mo), we think so — and we explicitly compare ourselves to Adobe, Smallpdf, iLovePDF, DocuSign, and Sejda below. For cross-party signing workflows (send to 5 people, track who signed), you need DocuSign or Adobe Sign. Pick the tradeoffs that match your actual use case.

Ikimenyetso PDF - Ubuntu, Private, Cryptographic

Imikono igaragara KANDI umukono wa digitifike nyayo (PKCS # 7) - byombi kubuntu, byombi, byombi byemewe n'amategeko

Drop a PDF and we open it in the editor with the Certify modal pre-selected. Draw your signature with mouse / trackpad / finger, type your name, or upload a signature image. Add reason / location / date fields. Place the visible signature anywhere on the page. We cryptographically sign the output using an in-browser-generated RSA-2048 self-signed certificate (or your own .p12 if you have one). Your PDF, your signature, and your private key never leave your device. No signup, no watermark, no per-signature charge. The only free PDF signer that does real cryptography.

100% Ubuntu Iteka Nta Konti Ikenewe 100% Ku gikoresho cyawe Ibanga ry’urwego rwa gisirikare

Amadosiye ntatambuka ku gikoresho cyawe

Ibanga rya AES-256

Ntidushobora kubona inyandiko zawe

Nta kwihuza bikenewe

Tera PDF yawe hano

cyangwa

PDF · Nta kohereza - umukono & urufunguzo rwigenga guma kubikoresho byawe.

Nigute wasinya PDF kubuntu

1. Tera PDF yawe

Kurura PDF kuri zone yatonywe hejuru, cyangwa ukande kugirango urebe. Muhinduzi afungura mu buryo bwikora hamwe na Certificat modal yabanje gutoranywa - nta kugendana binyuze muri menus, nta gushakisha igikoresho cyo gusinya.

2. Shushanya, wandike, cyangwa ushireho umukono wawe

Impamyabushobozi itanga inzira eshatu kumukono ugaragara: shushanya n'imbeba yawe, trackpad, cyangwa urutoki kuri ecran ya ecran; andika izina ryawe mumyandikire ifatika; cyangwa wohereze PNG / JPG umukono wawe uhari. Byose uko ari bitatu bitanga ibisubizo bimwe bigaragara - hitamo icyaricyo cyose kuri wewe.

3. Ongeraho impamvu, ahantu, nitariki

Kuri PDF 2.0 igaragara, imikono ya kriptografiya itwara impamvu zidasanzwe (urugero: "Ndi umwanditsi"), ahantu (urugero: "Berlin, Ubudage"), hamwe nimirima yitariki. Abagenzuzi bareba ibi kuruhande rwibanga. Twuzuza auto-itariki; kuzuza ahasigaye niba imiterere ihamagarira.

4. Shira umukono n'ikimenyetso

Kanda ahantu hose kurupapuro kugirango ugabanye umukono ugaragara urukiramende. Kurura kugirango uhindure. Kanda Kubika. Dutanga urufunguzo rushya rwa RSA-2048 + rwiyemezamirimo rwashizweho umukono muri mushakisha yawe, kubara SHA-256 hash yinyandiko byte urwego, gupakira PKCS # 7 yashyizweho umukono-data, hanyuma tuyashyira muri PDF. Idosiye yasinywe ikuramo ako kanya.

Impamvu Nibi Byiza Byubusa PDF

100% byaho - nta seriveri yabigizemo uruhare

PDF yawe, umukono wawe ushushanyije, icyemezo cyawe cyoherejwe, urufunguzo rwawe bwite - ntanumwe ukora kuri seriveri. Gereranya: Adobe, Smallpdf, iLovePDF, DocuSign, na Sejda byose byohereza byose. Iyo inyandiko ari amasezerano yasinywe, NDA, imenyekanisha ryimisoro, cyangwa irekurwa ryubuvuzi, bifite akamaro kuruta ahandi kurubuga.

Amashusho nyayo, urwego rwubusa

Smallpdf na iLovePDF biguha umukono ugaragara kumurongo wabo wubusa - umwanditsi kurupapuro nta bimenyetso bifatika. Nibyo "umukono wa elegitoronike", intege nke zemewe. Turaguha PKCS # 7 / CMS imikono ya digitale kubuntu, kimwe kimwe Adobe Acrobat Pro ikoresha (yinjizwa inyuma ya $ 15 / mo abiyandikisha hariya).

Ako kanya ibyemezo byashyizweho umukono

Byinshi mubisobanuro byerekana ibimenyetso bisaba icyemezo cyatanzwe mbere. Dutanga urufunguzo rushya rwa RSA-2048 hamwe na X.509 yashyizweho umukono muri mushakisha yawe ukoresheje Urubuga Crypto API - gushiraho zeru. Kuramo ibihari byawe .p12 / .pfx niba ushaka kwizera kwa gatatu; ubundi icyemezo-cyasinywe ubwacyo kirahagije kugirango ukoreshwe kugiti cyawe nu bucuruzi buciriritse.

Biboneka + byanditse kuri kode imwe

Ibikoresho byinshi byubusa biguhatira guhitamo kimwe. Turabashyira hamwe: umukono wawe ugaragara ushushanya uba kurupapuro KANDI PDF itwara umukono wibanga ryerekana uwasinye kandi ko inyandiko idahinduwe. Byombi muburyo bumwe bwo kuzigama.

Igenzura ryikora ku mutwaro

Tera umukono PDF hanyuma twerekane banneri yo kugenzura - ifite agaciro / itemewe / utizeye-uwatanze - hamwe nibisobanuro byabasinyiye. Abanywanyi mubisanzwe berekana ishusho yumukono gusa; ugomba kubyakira kubwo kwizera.

Iminyururu myinshi

Shyira umukono, wohereze kuri mugenzi we, basinya kandi bohereze. PDF ya byte-intera yerekana ishyigikira umubare uwo ariwo wose wimikono ikurikiranye; buri mukono mushya utwikiriye ibyambere, bitanga urunigi rushobora kugenzurwa. Muhinduzi wacu akora re-gusinya atatesheje agaciro umukono wabanjirije.

Nukuri Ubuntu, Iteka ryose

Nta kigeragezo, nta rwego rwo hejuru, nta kwishyurwa umukono. Adobe Acrobat Pro ni $ 15 / mo; DocuSign Umuntu ku giti cye ni $ 15 / mo; Smallpdf Pro ni $ 12 / mo. Bose barashobora kohereza dosiye yawe cyangwa bagasaba abiyandikisha kugirango basinywe. Dushyigikiwe kandi twisanzuye ubuziraherezo.

Nta konte, nta imeri

Tangira gusinya ako kanya. Nta kwiyandikisha, nta gufata imeri, nta karita y'inguzanyo.

Gukora kumurongo

Iyo umwanditsi amaze kwipakurura urashobora guhagarika interineti hanyuma ugakomeza gusinya. Nibyiza kumasezerano yoroheje, NDAs, hamwe ninyandiko zubukungu.

Imikono ya elegitoronike nu mukono wa Digital - Mubyukuri bifashe hejuru

Umukono wa elegitoronike (SES - Byoroshye)

Ikimenyetso icyo ari cyo cyose kigaragara ku nyandiko ya digitale: izina ryanditse, umwanditsi ushushanyije, umukono wa wan-wino washyizweho umukono, agasanduku "Ndabyemera". Byemewe n'amategeko mu nkiko nyinshi zubucuruzi bwa buri munsi (EU eIDAS SES tier, US ESIGN / UETA, UK Electronic Communication Act UK) ariko biroroshye guhatanira niba uwasinye nyuma yanze gusinya - nta kimenyetso cyerekana ko uwatanze ikimenyetso. Uburyo bwacu "bugaragara gusa" butanga ibi.

Umukono wa elegitoroniki wambere (AES)

Umuryango w’ubumwe bw’ibihugu by’Uburayi eIDAS. Ibisohoka byandika (PKCS # 7 hejuru ya SHA-256 hamwe na RSA-2048 hamwe nurufunguzo rwigenga rwakozwe mugace mububiko budashobora gukururwa bwa Web Crypto) byujuje ibyangombwa bine - urashobora gusaba AES status kuri PDF yasinywe hano.

Umukono wa elegitoroniki wujuje ibyangombwa (QES)

Umuryango w’ubumwe bw’ibihugu by’Uburayi EIDAS urwego 3. AES wongeyeho icyemezo cyujuje ibyangombwa bitangwa na serivisi ishinzwe gutanga serivisi (TSP) kurutonde rwizewe rw’ubumwe bw’ibihugu by’Uburayi, hiyongereyeho igikoresho cyujuje ibyangombwa (HSM cyangwa ikarita yerekana ikarita). QES ihwanye byemewe n'amategeko n'umukono wino-wino muri EU yose. Ntabwo dukora QES kuberako amashakiro yonyine adashobora kuzuza ibyuma bishingiye kubikoresho byo gushiraho umukono - ukeneye igikoresho cyabigenewe cyo gusinya cyangwa igicu HSM. Niba ikibazo cyawe cyo gukoresha gisaba cyane cyane QES (amasezerano ya notaire, inganda zimwe na zimwe zagenwe), ukeneye ikimenyetso cya Adobe, DocuSign EU yujuje ibisabwa, cyangwa TSP yaho.

Amategeko yo muri Amerika (ESIGN / UETA)

Itegeko rya Leta zunze ubumwe za Amerika ESIGN (2000) hamwe na leta ya UETA ifata imikono myinshi ya elegitoronike ihwanye n'amategeko na wino-wino - nta gahunda y’ubumwe bw’ibihugu by’Uburayi. Kugirango umukono ushyirwe mubikorwa: (a) impande zombi zigomba kwemera gusinya hakoreshejwe ikoranabuhanga, (b) umukono ugomba kuba wabigambiriye, (c) inyandiko zigomba kugumaho. Ibi byose birakora; ibisohoka byacu birahura. Ubwoko bumwe bwinyandiko zanditseho (ubushake, ibibazo byumuryango-amategeko, dosiye zimwe) - reba leta yawe.

PDF Edit vs Adobe, Smallpdf, iLovePDF, DocuSign, Sejda

Ibikoresho	PDF Edit	Adobe	Smallpdf	iLovePDF	DocuSign	Sejda
Amadosiye yoherejwe kuri seriveri?	No — 100% local	Yego	Yego	Yego	Yego	Yego
Imikono ya kriptografiya kurwego rwubusa?	Yes — PKCS#7 / CMS	Yishyuwe ($ 15 / mo)	Yishyuwe ($ 12 / mo)	Yishyuwe	Yishyuwe ($ 15 / mo)	Yishyuwe
Imikono igaragara kubuntu?	Yes	Yego	2 / umunsi kubuntu	Urwego rwubusa rugarukira	Yishyuwe	Urwego rwubusa rugarukira
Icyemezo cyasinywe wenyine muri mushakisha?	Yes — auto	Irasaba gutumizwa mu mahanga	Oya	Oya	Oya	Oya
Kuramo ibyawe .p12 / .pfx?	Yes	Yego (yishyuwe)	Oya	Oya	Yego (yishyuwe)	Oya
Konti irasabwa?	Never	Urwego rwubusa rugarukira	Imeri irakenewe	Urwego rwubusa rugarukira	Imeri irakenewe	Urwego rwubusa rugarukira
Ikimenyetso cy’amazi ku byasohotse?	No	Oya	Oya	Oya	Oya	Oya
Bikora offline nyuma yo gushyiraho?	Yes	Oya	Oya	Oya	Oya	Oya
Kugenzura imikono yinjira?	Yes — auto banner	Yego	Igice	Igice	Yego	Igice
Igiciro cyumwaka cyo gusinya kode?	$0	~$180/yr	~$144/yr	~$80/yr	~$180/yr	~$80/yr

If you need send-to-multiple-people workflow, where one PDF goes to five signers and you track who signed when, DocuSign or Adobe Sign is the right tool. For you signing your own documents — contracts you received, vendor agreements, NDAs, tax forms — we cover the exact same cryptographic capability for free, without uploading anything.

Ninde wasinyiye PDFs nkiyi?

Abaterankunga basinya amasezerano

Umukiriya yohereza IMBUTO cyangwa igumana. Urasinya, kode-kashe, ohereza inyuma. Nta kohereza kuri DocuSign, nta imeri "yubusa", nta abiyandikishije Adobe - kandi umukono urakomeye byemewe n'amategeko kuruta umwanditsi wa JPG kuko ushyigikiwe na PKCS # 7 crypto.

Impapuro zabugenewe

Tanga amabaruwa, NDAs, paki zipakira, W-9s, impapuro zifatira imisoro. Birakomeye bihagije ko kohereza kurubuga rwubusa kubusa ntibikwiye. Shyira umukono mu karere, ohereza kuri imeri.

Kurekura kwa muganga hamwe nimpapuro za HIPAA

Uruhushya rwasinywe kubuvuzi, ibisabwa byubwishingizi, cyangwa impapuro zisohora. Ibirimo HIPAA ntibigomba koherezwa kuri seriveri y'umuntu utazi. Byibanze-gusinya ibibazo.

Kwandikirana byemewe n'amategeko

Amabaruwa yo gusezerana, amasezerano yo gukemura, imenyekanisha, indahiro. Aho amahirwe yometse, inyandiko ntigomba kuva mubikoresho byawe mugihe cyo gusinya. Urujya n'uruza rwacu rurinda ibyo.

Umutungo utimukanwa n'amasezerano yo gukodesha

Amasezerano yo gukodesha, ubugororangingo bwubukode, kumenyekanisha umutungo. Shyira umukono kandi ugaruke utiyandikishije kurundi rubuga rwo gusinya. Mugenzi we abona ibishushanyo-byemejwe byashyizweho umukono PDF bashobora gufungura mubareba bose.

Impapuro za leta n'imisoro

Ifishi ya IRS (W-9, 1099), ibyifuzo bya leta, ibyangombwa byabinjira. Inzego nyinshi zemera PKCS # 7 zashyizweho umukono PDFs. Gusinya kwaho birinda kohereza ibyangombwa biranga umuntu.

Abanditsi n'abafite uburenganzira

Shyira umukono kubikorwa bya digitale kugirango ugaragaze umwanditsi mugihe runaka. PKCS # 7 umukono + ingengabihe muri PDF yashyizweho umukono ni inyandiko iramba yerekana, yometse ku rufunguzo rwawe bwite.

Ibyemezo byubuyobozi

Inyandikomvugo yinama, imyanzuro yo kwemererwa, inkunga-ihitamo. Inkunga nyinshi-isinyisha urwego rutuma abayobozi basinya bikurikiranye baterekeje PDF binyuze mubicu byabandi.

Ububiko bwigihe kirekire

Shyira umukono kuri PDF uyumunsi hamwe nitariki-kashe ya kriptografiya. Bika aho. Nyuma yimyaka, umuntu wese ufite dosiye arashobora kugenzura ko yashyizweho umukono nabafite urufunguzo rwawe bwite kandi ntirwahindurwa kuva. (Kumurongo muremure-wo kwemeza akazi hamwe nigihe cyizewe, reba igice cyibibazo kuri LTV.)

Shyira umukono PDF kuri iPhone, Android, Mac, Windows, na Chromebook

Umukono wa PDF ukora kuri buri gikoresho hamwe na mushakisha igezweho - Windows, Mac, Linux, Chromebook, iPad, iPhone, na Android. Kuri iPad Pro hamwe n'ikaramu ya Apple, gushushanya umukono wawe wumva neza nka porogaramu igendanwa ya DocuSign, ukuyemo abiyandikishije ukanakuramo. Nta porogaramu yinjizamo, nta plugins, nta burenganzira bwa admin. Urupapuro rumaze kwipakurura urashobora guhagarika interineti hanyuma ugakomeza gusinya - ibintu byose bikorera mugace ukoresheje Web Crypto API.

Nigute Browser ishingiye kuri Cryptographic PDF Gusinya Gukora?

Iyo ukanze Kubika, tubyara urufunguzo rushya rwa RSA-2048 muri mushakisha yawe ukoresheje Urubuga Crypto API (crypto.subtle.generateKey) - urufunguzo rwibanze ruba mububiko budakurwa kandi ntibushobora koherezwa hanze. Twubaka X.509 icyemezo cyasinywe wenyine hamwe nizina wahisemo. PDF yateguwe hamwe nubusa / Sig umwanya wimbere imbere ya / AcroForm. Turabara SHA-256 hash ya byte intera yinyandiko ukuyemo umwanya. Hash yasinywe nurufunguzo rwawe bwite ukoresheje crypto.subtle.sign (RSA-PKCS1-v1_5 hamwe na SHA-256). Twubaka PKCS # 7 / CMS YasinyweData imiterere ikubiyemo umukono, icyemezo cyawe, igihe cyo gusinya, nimpamvu iyo ari yo yose / ahantu metadata. PKCS # 7 blob ni DER-yashizwemo kandi yashyizwe mumwanya wa PDF / Sig. Idosiye ikuramo. Buriwese ureba PDF ya kijyambere (Adobe, Chrome, Edge, Foxit, Preview, Firefox) asoma imiterere ya PKCS # 7 kumugaragaro, asubiramo inyandiko hash, agenzura umukono ku cyemezo cyashyizwemo, kandi agaragaza ikirango cyo kugenzura. Crypto yose ikora muri mushakisha yawe - nta seriveri, nta kohereza, nta telemetrie.

Ibibazo Bikunze Kubazwa

Nigute nasinya PDF kubusa?

Tera PDF yawe kurupapuro hejuru. Muhinduzi afungura hamwe na Certificat modal yabanje gutoranywa. Shushanya, andika, cyangwa ushireho umukono wawe. Kanda urupapuro kugirango ubishyire. Kanda Kubika. Ubuntu, bwaho, nta kimenyetso cyamazi.

Nigute nakongeramo umukono kuri PDF?

Gutemba kimwe - guta, gushushanya, ahantu, kubika. "Ikimenyetso" na "ongeraho umukono" bitanga ibisubizo bimwe mubikoresho byacu.

Iyi mikono yaba yemewe n'amategeko?

Yego mu byegera bikomeye bya juridisiyo. Umusaruro wacu w'ubwihisho wa kriptografiya uyobora ibisabwa bya EU eIDAS "Advanced Electronic Signature" kandi bihuza na US ESIGN / UETA ibisabwa. Ku mzigo wa notariya cyangwa imirimo ihuye na QES, ukeneye impamyabumenyi isohoka na TSP tutashobora gukora mu mushakashatsi — koresha Adobe Sign cyangwa TSP ya igihugu.

PDF yanjye yoherejwe?

Oya. Gusinya bibaho rwose muri mushakisha yawe. PDF yawe, umukono, nurufunguzo rwigenga ntuzigera ukora kuri seriveri.

Ni irihe tandukaniro riri hagati yimikono ya elegitoroniki na digitale?

Electronic = ikimenyetso icyo ari cyo cyose kigaragara (abanditsi, izina ryanditse, ishusho). Digital = ibikorwa byerekana ibimenyetso byerekana indangamuntu + ubunyangamugayo. Turakora byombi, bikusanyirijwe kumurongo umwe wasinywe. Abanywanyi benshi buntu bakora gusa ibikoresho bya elegitoroniki.

PKCS # 7 ni iki?

Kodegisi isanzwe yamakuru yasinywe muri PDFs. Umuntu wese ugezweho PDF asoma PKCS # 7 / CMS kavukire. Ibisohoka byacu birahuye - imiterere imwe Adobe Acrobat Pro ikoresha.

PDF yashyizweho umukono izakora muri Adobe?

Yego. Adobe Acrobat Umusomyi / Pro, Chrome, Edge, Firefox, Foxit, macOS Imbere - byose bigenzura imikono yacu. Kwishyiriraho umukono byerekana "umukono utazwi" kuburira (imyitwarire ikwiye); ohereza .p12 uhereye kuri CA wizewe kugirango ugenzure icyatsi-badge.

Nshobora kohereza icyemezo cyanjye gihari?

Yego. Muri Certificate modal hitamo "Koresha icyemezo gihari" hanyuma wohereze dosiye yawe .p12 cyangwa .pfx (hamwe nijambobanga niba rihari). Icyemezo gisesenguwe mugace - ntabwo byigeze byoherezwa.

Abantu benshi bashobora gusinya PDF imwe?

Yego, bikurikiranye. Shyira umukono kandi ukuremo. Uwakiriye arakingura hano hanyuma yongera gusinya. Buri mukono utwikiriye ibyambere - urunigi rusuzumwa.

Nshobora gusinya PDF kuri terefone yanjye?

Yego. Akora kuri iPhone Safari, iPad (cyane cyane hamwe n'ikaramu ya Apple - yumva nka DocuSign Mobile), Android Chrome. Shushanya urutoki rwawe.

Nshobora gusinya ijambo ryibanga ririnzwe PDF?

Yego niba yafunzwe n'umutunzi, oya niba yafunzwe n'umukoresha. Niba yafunzwe n'umutunzi, gusinya birakora neza. Niba yafunzwe n'umukoresha (passcode bisabwa kugira ngo bisazinze), fungura binyuze kuri /unlock-pdf bwa mbere. Ibikoresho byombi bikora mu buryo bw'aho ahantu.

Cyakora kumurongo?

Nibyo, iyo umwanditsi amaze kwikorera. Moteri yo gusinya ikora muri mushakisha yawe.

Bite ho kumikono yagenwe igihe (RFC 3161)?

Ntabwo arashyigikirwa kugeza - igihe cyerekana igihe cyo guhamagarira umuyoboro kuri TSA yo hanze yica amasezerano yacu gusa. Kwemeza igihe kirekire (LTV) akazi, koresha Adobe Acrobat Pro cyangwa serivisi yo gusinya mubucuruzi.

Umugenzuzi azabona icyemezo cyanjye-cyasinywe nkicyemewe?

Oya — bazabona inzitizi "usinyabuguzi ntazwi" kuko impamyabumenyi zizisinye ziziko ntizashyizweho mu murongo wa CA y'inkomoko yizewe. Insinanturo ubwayo NI ingaruzwamukono ya kriptografiya — ni ntangabuguzi ya nimero isaba zizere z'umuntu wa gatatu. Ku gukoresha bwite bihagije; ku gukoresha mu mategeko/ubucuruzi, shyiraho .p12 y'umukozi CA wizobereye.

Uyahawe ashobora guhindura PDF yashyizweho umukono?

Oya — niba bayihindura, insinanturo ya kriptografiya isibye kandi umucuri uwo ari we wese abona "sinanturo ntishoboka, inyandiko yahinduwe nyuma yo gusinya". Ibi ni precisely ibintu byo gusuzuma gutatanye bitera sinanturo za dijitali kuba ingaruzwamukono mu mategeko.

Umukono wanjye uzaba ufite amazi?

Oya. Umukono wawe PDF urimo umukono wawe - oya "Kashe na FreeTool" kashe, nta matangazo, nta kuzamuka. Ibyo usinya nibyo byoherezwa.

Haba hari ingano yubunini bwa dosiye?

Nta karimbi. Ububiko bwibikoresho nigisenge cyonyine.

Nibisinywa byiza bya PDF?

Yego — ku mirimo ifatira ibanga mbere no kubona sinanturo za kriptografiya ku rwego rw'ubuntu, twebwe twibwira ko aribyo. Ku gutunganya imirimo y'inzitizi nyinshi (ohereza ku basinya 5, gukurikira imiterere), DocuSign cyangwa Adobe Sign ni igikoresho cyo — indi kategori.

About this tool: PDF Edit is built by a small independent team who were tired of PDF tools that required accounts, uploaded files to servers we didn't control, and gated cryptographic signing behind subscriptions. Everything here runs in your browser — your PDF, your signature drawing, and your private key stay on your device. The signing engine uses the Web Crypto API for RSA key generation and hashing, and produces PKCS#7 / CMS signatures that validate in every modern PDF viewer. Free forever, ad-supported.

Last updated: 2026-05-13